485BPOS

SEC Registration Nos.

Nos. 811-06563 and 33-45829

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Post-Effective Amendment No. 43  x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT ACT OF 1940

Amendment No. 43 x

Calvert World Values Fund, Inc.

(Exact Name of Registrant as Specified in Charter)

4550 Montgomery Avenue

Bethesda, Maryland 20814

(Address of Principal Executive Offices)

Registrant’s Telephone Number: (301) 951-4800

William M. Tartikoff

4550 Montgomery Avenue

Bethesda, Maryland 20814

(Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box):

x immediately upon filing pursuant to paragraph (b)

¨ on (date) pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ on (date) pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ on (date) pursuant to paragraph (a)(2) of Rule 485.

EXPLANATORY NOTE

This Post-Effective Amendment is being filed solely to submit exhibits containing risk/return summary information in interactive data format that is identical to the risk/return information filed as part of the Post-Effective Amendment No. 42 to this Registration Statement, as filed on January 30, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under Rule 485(b) under the Securities Act and has duly caused this registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of Bethesda, and State of Maryland on the 8th day of February 2013.

CALVERT WORLD VALUES FUND, INC.

BY:
	**
Barbara Krumsiek
President and Director

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below on the 8th day of February 2013, by the following persons in the capacities indicated.

Signature	Title
**	DIRECTOR
D. WAYNE SILBY
**	DIRECTOR
JOHN G. GUFFEY, JR.
**	PRESIDENT AND DIRECTOR
BARBARA J. KRUMSIEK
**	TREASURER
RONALD M. WOLFSHEIMER	(PRINCIPAL ACCOUNTING OFFICER)
**	DIRECTOR
REBECCA L. ADAMSON
**	DIRECTOR
RICHARD L. BAIRD, JR
**	DIRECTOR
JOY V. JONES
**	DIRECTOR
TERRENCE J. MOLLNER
**	DIRECTOR
SYDNEY A. MORRIS
**	DIRECTOR
MILES D. HARPER, III

**By:	/s/ Lancelot A. King
	Lancelot A. King

Executed by Lancelot A. King, Attorney-in-fact on behalf of those indicated, pursuant to Power of Attorney Forms, incorporated by reference to Registrant’s Post-Effective Amendment No. 42, January 30, 2013, accession number 0000884110-13-000001.

Calvert World Values Fund, Inc.

Post-Effective Amendment No. 43

Registration No. 033-45829

EXHIBIT INDEX

XBRL Instance Document	Ex-101.ins
XBRL Taxonomy Extension Schema Document	Ex-101.sch
XBRL Taxonomy Extension Labels Linkbase	Ex-101.lab
XBRL Taxonomy Extension Presentation Linkbase Document	Ex-101.pre
XBRL Taxonomy Extension Definition Linkbase	Ex-101.def
XBRL Taxonomy Extension Calculation Linkbase	Ex-101.cal

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Class I | Calvert International Equity Fund

CALVERT INTERNATIONAL EQUITY FUND
Class  (Ticker):   I (CWVIX)

INVESTMENT OBJECTIVE

The Fund seeks to provide a high total return consistent with reasonable risk by investing primarily in a diversified portfolio of stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Class I Calvert International Equity Fund
Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Annual Fund Operating Expenses	Class I Calvert International Equity Fund
Management fees	0.90%
Distribution and service (12b-1) fees	none
Other expenses	0.19%
Acquired fund fees and expenses	0.02%
Total annual fund operating expenses	1.11%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year; and
• the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
Class I Calvert International Equity Fund	11,316	35,285	61,156	135,169

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 43% of its portfolio’s average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund normally invests at least 80% of its net assets, including borrowings for investment purposes, in equity securities of foreign companies (common and preferred stock and the depositary receipts on such stock). The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy. Using a core investment approach, the Fund invests primarily in common and preferred stocks of non-U.S. large-cap companies. The Fund defines non-U.S. large-cap companies as those whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Global Investable Market Index (“IMI”). As of December 31, 2012, the market capitalization of the MSCI EAFE IMI companies ranged from $47 million to $225 billion with a weighted median level of $28.3 billion and a weighted average level of $51.5 billion. MSCI Barra reassesses the MSCI EAFE IMI quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters. The Fund normally seeks to have a weighted average market capitalization of at least $10 billion.

The Fund generally holds stocks of companies from the constituent countries of the MSCI EAFE IMI, but may invest in other countries, including emerging markets stocks. The Fund will invest in at least three different countries. The Advisor and the Subadvisors focus on deriving returns from individual stock selection (bottom-up). The Advisor and the Subadvisors utilize fundamental insights arrived at through qualitative and quantitative analysis of a broad range of non-U.S. securities to identify stocks expected to provide returns superior to that of the benchmark. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE IMI benchmark by balancing the risks and opportunities among the portions of the portfolio managed by the Advisor and each Subadvisor. The Advisor may shift allocations among the Advisor and the Subadvisors depending on market conditions, the Advisor’s or Subadvisors’ respective style biases, and performance opportunities.

The Fund invests no more than 5% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets among the portions of the portfolio managed by the Advisor and each Subadvisor may cause the Fund to underperform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Large-Cap Company Risk. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Advisor and the Subadvisors make investment decisions independently from each other. It is possible that the Advisor’s and each Subadvisor’s investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Performance

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class I shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Calendar Year Total Return

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	23.79	%
Worst Quarter (of periods shown)	12/31/08	-23.93	%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Average Annual Total Returns
(as of 12/31/12)

Average Annual Total Returns Class I	1 Year	5 Years	10 Years
Calvert International Equity Fund	18.49%	(6.18%)	5.05%
Calvert International Equity Fund Return after taxes on distributions	18.49%	(6.10%)	4.64%
Calvert International Equity Fund Return after taxes on distributions and sale of Fund shares	12.66%	(4.85%)	4.63%
Calvert International Equity Fund MSCI EAFE IMI (reflects no deduction for fees, expenses or taxes)	18.20%	(2.90%)	9.08%
Calvert International Equity Fund Lipper International Multi-Cap Growth Funds Avg. (reflects no deduction for taxes)	18.03%	(3.03%)	8.72%

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Class I | Calvert International Opportunities Fund

CALVERT INTERNATIONAL OPPORTUNITIES FUND
Class (Ticker):   I (COIIX)

INVESTMENT OBJECTIVE

The Fund seeks long-term capital appreciation through holdings that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Class I Calvert International Opportunities Fund
Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Annual Fund Operating Expenses		Class I Calvert International Opportunities Fund
Management fees		0.95%
Distribution and service (12b-1) fees		none
Other expenses		0.75%
Total annual fund operating expenses		1.70%
Less fee waiver and/or expense reimbursement	[1]	(0.50%)
Net expenses		1.20%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
Class I Calvert International Opportunities Fund	12,228	48,694	87,607	196,697

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 56% of its portfolio’s average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund invests primarily in common and preferred stocks of non-U.S. small-cap to mid-cap companies, which the Fund defines as companies whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Small-Mid (“SMID”) Index. As of December 31, 2012, the market capitalization of the MSCI EAFE SMID companies ranged from $43 million to $41 billion with a weighted median level of $3.6 billion and a weighted average level of $4.6 billion. MSCI Barra reassesses the MSCI EAFE SMID Index quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters.

The Fund normally seeks to have a weighted average market capitalization between $2 billion and $5 billion.

The Fund invests no more than 10% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund primarily holds stocks of companies in developed countries but as an internationally diverse fund, it may invest in any geographic region of the world (at least three different countries) if a Subadvisor deems the company attractive. The stock selection process of each Subadvisor does not utilize a predetermined geographic allocation, and each Subadvisor primarily uses a bottom-up approach focused on fundamental analysis of stocks of individual companies across all geographic regions. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE SMID benchmark by balancing the risks and opportunities between the portion of the portfolio managed by each Subadvisor. The Advisor may shift allocations between the Subadvisors depending on market conditions, the Subadvisors’ respective style biases, and performance opportunities. The Fund may invest up to 20% of its assets in securities of issuers in emerging market countries. The securities in which the Fund invests are often denominated and traded in foreign currencies.

Attractive companies are identified through a combination of valuation and growth metrics that seeks to identify companies with a sustainable competitive advantage. Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets between the portion of the portfolio managed by each Subadvisor may cause the Fund to underperform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Small-Cap and Mid-Cap Company Risk. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by a Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Subadvisors make investment decisions independently from each other. It is possible that the Subadvisors’ investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Performance

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class I shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Calendar Year Total Returns

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	24.14	%
Worst Quarter (of periods shown)	12/31/08	-24.10	%

Average Annual Total Returns
(as of 12/31/12)

Average Annual Total Returns Class I	1 Year	5 Years	Since Inception	Inception Date
Calvert International Opportunities Fund	25.53%	(2.18%)	(1.30%)	May 31, 2007
Calvert International Opportunities Fund Return after taxes on distributions	25.45%	(2.16%)	(1.28%)	May 31, 2007
Calvert International Opportunities Fund Return after taxes on distributions and sale of Fund shares	17.13%	(1.64%)	(0.91%)	May 31, 2007
Calvert International Opportunities Fund MSCI EAFE SMID Index (reflects no deduction for fees, expenses or taxes)	19.43%	(1.71%)	(2.89%)	May 31, 2007
Calvert International Opportunities Fund Lipper International Small Mid Cap Core Funds Avg. (reflects no deduction for taxes)	19.82%	(1.54%)	(2.62%)	May 31, 2007

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses to 1.20% through January 31, 2014. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	CALVERT WORLD VALUES FUND INC
Prospectus Date	rr_ProspectusDate	Jan. 31, 2013
Class I | Calvert Emerging Markets Equity Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	CALVERT EMERGING MARKETS EQUITY FUND Class  (Ticker):   I (CVMIX)
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks long-term capital appreciation by investing primarily in equity securities of companies located in emerging market countries, in accordance with the Fund’s sustainability and corporate responsibility criteria. This objective may be changed by the Fund’s Board of Directors without shareholder approval.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 31, 2014
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. Because the Fund has less than a full fiscal year of investment operations, no portfolio turnover rate is provided for the Fund at this time.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that: you invest $1,000,000 in the Fund for the time periods indicated; your investment has a 5% return each year; the Fund’s operating expenses remain the same; and any Calvert expense limitation is in effect for the period indicated in the fee table above. Although your actual costs may be higher or lower, under these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	INVESTMENTS, RISKS AND PERFORMANCE Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund normally invests at least 80% of its assets, including borrowings for investment purposes, in equity securities of companies located in emerging market countries. The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy. Equity securities held by the Fund will primarily include common stock, preferred stock, depositary receipts, options on securities, and equity-equivalent securities, such as participatory notes (“P-notes”). Derivatives, such as futures, options on futures and swaps, may also be held by the Fund incidental to its main investment strategy. The Subadvisor considers emerging market countries to be those included in the Fund’s benchmark index, the MSCI Emerging Markets Index; countries determined by the World Bank to have a low to middle income economy; and other countries or markets with similar emerging market characteristics as determined by the Subadvisor. A company is considered to be located in an emerging market country if it has a class of securities whose principal securities market is in an emerging market country; is organized under the laws of, or has a principal office in, an emerging market country; derives 50% or more of its total revenues or earnings from goods produced, sales made, or services provided in one or more emerging market countries; or maintains 50% or more of its assets in one or more emerging market countries. The Fund may invest in companies of any market capitalization size but seeks to have market capitalization size characteristics similar to that of the MSCI Emerging Markets Index. As of December 31, 2012, the market capitalization of the MSCI Emerging Markets Index companies ranged from $727 million to $259 billion with a weighted median level of $18.2 billion and a weighted average level of $48.1 billion. The Fund is expected to invest its assets among companies located in emerging markets throughout the world. The Fund may also invest in securities denominated in foreign currencies and may engage in foreign currency transactions. The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund. The Subadvisor seeks to identify companies located in emerging market countries that are trading at a discount to what the Subadvisor believes to be their intrinsic value but have the potential to increase their book value. To this end, the Subadvisor combines a top-down approach to country analysis with a bottom-up approach to fundamental company research. The country analysis includes an assessment of the risks and opportunities for each emerging market country through in-depth quantitative and qualitative analysis. In addition, the country research process produces a ranking of emerging markets countries based on expected returns with greater active weights allocated to higher-ranking countries. The fundamental company research also utilizes a number of qualitative and quantitative methods. Portfolio construction is determined by the Subadvisor based on its level of conviction in the country and company with input from proprietary risk models. The Fund may sell a security when it no longer appears attractive by the Subadvisor or does not meet the Fund’s sustainability and corporate responsibility criteria. Sustainable and Responsible Investing. The Fund seeks to invest in emerging market companies whose products/services or industrial/ business practices contribute towards addressing one or more global sustainability challenges in their local and/or international markets, including development, poverty and health; environment and climate change; and rights and governance. Investments are first selected for financial soundness and then evaluated according to these sustainability and corporate responsibility criteria, the application of which is in the economic interest of the Fund and its shareholders.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund. Management Risk. The individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. Stock Market Risk. The market prices of stocks held by the Fund may fall. Market Capitalization Risks. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies. Prices of microcap securities are generally even more volatile and their markets are even less liquid relative to small-cap, mid-cap and large-cap securities. Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being. Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock. Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”). Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends. P-Note Risk. To the extent the Fund invests in P-notes, it is subject to certain risks in addition to the risks normally associated with a direct investment in the underlying foreign securities the P-note seeks to replicate. As the purchaser of a P-note, the Fund is relying on the creditworthiness of the counterparty issuing the P-note and does not have the same rights under a P-note as it would as a shareholder of the underlying issuer. Therefore, if a counterparty becomes insolvent, the Fund could lose the total value of its investment in the P-note. In addition, there is no assurance that there will be a trading market for a P-note or that the trading price of a P-note will equal the value of the underlying security. Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars. Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates. Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers. Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated. Derivatives Risk. In general, a derivative is a financial contract whose value is based on the value of a financial asset (such as a stock, bond, or currency), a physical asset (such as gold), or a market index (such as the S&P 500 Index). Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying asset, credit risk with respect to the counterparty, and liquidity risk. The Fund’s use of certain derivatives may also have a leveraging effect, which may increase the volatility of the Fund and reduce its returns.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	Because the Fund has less than a full calendar year of investment operations, no performance information is presented for the Fund at this time.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	Because the Fund has less than a full calendar year of investment operations, no performance information is presented for the Fund at this time.
Class I | Calvert Emerging Markets Equity Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)	rr_RedemptionFeeOverRedemption	2.00%
Management fees	rr_ManagementFeesOverAssets	1.05%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.79%
Total annual fund operating expenses	rr_ExpensesOverAssets	1.84%
Less fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[1]
Net expenses	rr_NetExpensesOverAssets	1.43%
1 Year	rr_ExpenseExampleYear01	14,555
3 Years	rr_ExpenseExampleYear03	54,001

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses to 1.43% through January 31, 2014. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

CALVERT WORLD VALUES FUND INC

Prospectus Date

rr_ProspectusDate

Jan. 31, 2013

Class A, C and Y | Calvert International Opportunities Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

CALVERT INTERNATIONAL OPPORTUNITIES FUND
Class (Ticker):   A (CIOAX)   C (COICX)   Y (CWVYX)

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks long-term capital appreciation through holdings that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES OF THE FUND

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as
a % of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

January 31, 2014

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 56% of its portfolio’s average value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

56.00%

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge reduces over time.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

50,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests primarily in common and preferred stocks of non-U.S. small-cap to mid-cap companies, which the Fund defines as companies whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Small-Mid (“SMID”) Index. As of December 31, 2012, the market capitalization of the MSCI EAFE SMID companies ranged from $43 million to $41 billion with a weighted median level of $3.6 billion and a weighted average level of $4.6 billion. MSCI Barra reassesses the MSCI EAFE SMID Index quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters. The Fund normally seeks to have a weighted average market capitalization between $2 billion and $5 billion.

The Fund invests no more than 10% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund primarily holds stocks of companies in developed countries but as an internationally diverse fund, it may invest in any geographic region of the world (at least three different countries) if a Subadvisor deems the company attractive. The stock selection process of each Subadvisor does not utilize a predetermined geographic allocation, and each Subadvisor primarily uses a bottom-up approach focused on fundamental analysis of stocks of individual companies across all geographic regions. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE SMID benchmark by balancing the risks and opportunities between the portion of the portfolio managed by each Subadvisor. The Advisor may shift allocations between the Subadvisors depending on market conditions, the Subadvisors' respective style biases, and performance opportunities. The Fund may invest up to 20% of its assets in securities of issuers in emerging market countries. The securities in which the Fund invests are often denominated and traded in foreign currencies.

Attractive companies are identified through a combination of valuation and growth metrics that seeks to identify companies with a sustainable competitive advantage. Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets between the portion of the portfolio managed by each Subadvisor may cause the Fund to underperform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Small-Cap and Mid-Cap Company Risk. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by a Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Subadvisors make investment decisions independently from each other. It is possible that the Subadvisors' investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance results for Class Y shares prior to 10/31/08 (the Class Y shares’ inception date) reflect the performance of Class A shares at net asset value. Actual Class Y share performance would have been higher than Class A share performance because Class Y, unlike Class A, has no Rule 12b-1 fees.

The return for each of the Fund’s other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart shows how the performance of the Class A shares has varied from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.calvert.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A at NAV

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	24.05	%
Worst Quarter (of periods shown)	12/31/08	-24.15	%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns Since
(as of 12/31/12) (with maximum
sales charge deducted, if any

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Class A, C and Y | Calvert International Opportunities Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.75%

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.15%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.95%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.35%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.69%)

^[2]

Net expenses

rr_NetExpensesOverAssets

1.66%

1 Year

rr_ExpenseExampleYear01

636

3 Years

rr_ExpenseExampleYear03

1,111

5 Years

rr_ExpenseExampleYear05

1,611

10 Years

rr_ExpenseExampleYear10

2,983

2008

rr_AnnualReturn2008

(43.80%)

2009

rr_AnnualReturn2009

34.87%

2010

rr_AnnualReturn2010

12.58%

2011

rr_AnnualReturn2011

(17.87%)

2012

rr_AnnualReturn2012

24.98%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter (of periods shown)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

24.05%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter (of periods shown)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(24.15%)

1 Year

rr_AverageAnnualReturnYear01

19.05%

5 Years

rr_AverageAnnualReturnYear05

(3.55%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.60%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

1.00%

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.15%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

1.50%

Total annual fund operating expenses

rr_ExpensesOverAssets

3.65%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(1.15%)

^[2]

Net expenses

rr_NetExpensesOverAssets

2.50%

1 Year

rr_ExpenseExampleYear01

353

3 Years

rr_ExpenseExampleYear03

1,012

5 Years

rr_ExpenseExampleYear05

1,791

10 Years

rr_ExpenseExampleYear10

3,832

1 Year

rr_ExpenseExampleNoRedemptionYear01

253

3 Years

rr_ExpenseExampleNoRedemptionYear03

1,012

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,791

10 Years

rr_ExpenseExampleNoRedemptionYear10

3,832

1 Year

rr_AverageAnnualReturnYear01

22.83%

5 Years

rr_AverageAnnualReturnYear05

(3.42%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.29%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | Class Y

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.15%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

1.34%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.49%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(1.08%)

^[2]

Net expenses

rr_NetExpensesOverAssets

1.41%

1 Year

rr_ExpenseExampleYear01

144

3 Years

rr_ExpenseExampleYear03

672

5 Years

rr_ExpenseExampleYear05

1,228

10 Years

rr_ExpenseExampleYear10

2,744

1 Year

rr_AverageAnnualReturnYear01

25.25%

5 Years

rr_AverageAnnualReturnYear05

(2.44%)

Since Inception

rr_AverageAnnualReturnSinceInception

(1.59%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | After Taxes on Distributions | Class A

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

18.99%

5 Years

rr_AverageAnnualReturnYear05

(3.58%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.62%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | After Taxes on Distributions and Sales | Class A

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

12.82%

5 Years

rr_AverageAnnualReturnYear05

(2.93%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.13%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | MSCI EAFE SMID Index (reflects no deduction for fees, expenses or taxes) | Class C

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

19.43%

5 Years

rr_AverageAnnualReturnYear05

(1.71%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.62%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | MSCI EAFE SMID Index (reflects no deduction for fees, expenses or taxes) | Class Y

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

19.43%

5 Years

rr_AverageAnnualReturnYear05

(1.71%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.89%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | Lipper International Small Mid Cap Core Funds Avg. (reflects no deduction for taxes) | Class C

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

19.82%

5 Years

rr_AverageAnnualReturnYear05

(1.54%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.75%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 31, 2007

Class A, C and Y | Calvert International Opportunities Fund | Lipper International Small Mid Cap Core Funds Avg. (reflects no deduction for taxes) | Class Y

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

19.82%

5 Years

rr_AverageAnnualReturnYear05

(1.54%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.62%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

[1] The contingent deferred sales charge reduces over time.

[2] The investment advisor has agreed to contractually limit direct net annual fund operating expenses for Class A, Class C, and Class Y through January 31, 2014. Direct net operating expenses will not exceed 1.66% for Class A, 2.50% for Class C, and 1.41% for Class Y. Calvert has further agreed to contractually limit direct net actual fund operating expenses for Class Y to 3.00% through January 31, 2023. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

CALVERT WORLD VALUES FUND INC

Prospectus Date

rr_ProspectusDate

Jan. 31, 2013

Class I | Calvert International Opportunities Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

CALVERT INTERNATIONAL OPPORTUNITIES FUND
Class (Ticker):   I (COIIX)

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks long-term capital appreciation through holdings that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES OF THE FUND

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

January 31, 2014

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 56% of its portfolio’s average value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

56.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests primarily in common and preferred stocks of non-U.S. small-cap to mid-cap companies, which the Fund defines as companies whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Small-Mid (“SMID”) Index. As of December 31, 2012, the market capitalization of the MSCI EAFE SMID companies ranged from $43 million to $41 billion with a weighted median level of $3.6 billion and a weighted average level of $4.6 billion. MSCI Barra reassesses the MSCI EAFE SMID Index quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters.

The Fund normally seeks to have a weighted average market capitalization between $2 billion and $5 billion.

The Fund invests no more than 10% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund primarily holds stocks of companies in developed countries but as an internationally diverse fund, it may invest in any geographic region of the world (at least three different countries) if a Subadvisor deems the company attractive. The stock selection process of each Subadvisor does not utilize a predetermined geographic allocation, and each Subadvisor primarily uses a bottom-up approach focused on fundamental analysis of stocks of individual companies across all geographic regions. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE SMID benchmark by balancing the risks and opportunities between the portion of the portfolio managed by each Subadvisor. The Advisor may shift allocations between the Subadvisors depending on market conditions, the Subadvisors’ respective style biases, and performance opportunities. The Fund may invest up to 20% of its assets in securities of issuers in emerging market countries. The securities in which the Fund invests are often denominated and traded in foreign currencies.

Attractive companies are identified through a combination of valuation and growth metrics that seeks to identify companies with a sustainable competitive advantage. Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets between the portion of the portfolio managed by each Subadvisor may cause the Fund to underperform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Small-Cap and Mid-Cap Company Risk. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by a Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Subadvisors make investment decisions independently from each other. It is possible that the Subadvisors’ investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class I shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart shows how the performance of the Class I shares has varied from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.calvert.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	24.14	%
Worst Quarter (of periods shown)	12/31/08	-24.10	%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(as of 12/31/12)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Class I | Calvert International Opportunities Fund | Class I

Risk/Return:

rr_RiskReturnAbstract

Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.95%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.75%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.70%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.50%)

^[1]

Net expenses

rr_NetExpensesOverAssets

1.20%

1 Year

rr_ExpenseExampleYear01

12,228

3 Years

rr_ExpenseExampleYear03

48,694

5 Years

rr_ExpenseExampleYear05

87,607

10 Years

rr_ExpenseExampleYear10

196,697

2008

rr_AnnualReturn2008

(43.55%)

2009

rr_AnnualReturn2009

35.39%

2010

rr_AnnualReturn2010

13.19%

2011

rr_AnnualReturn2011

(17.55%)

2012

rr_AnnualReturn2012

25.53%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter (of periods shown)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

24.14%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter (of periods shown)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(24.10%)

1 Year

rr_AverageAnnualReturnYear01

25.53%

5 Years

rr_AverageAnnualReturnYear05

(2.18%)

Since Inception

rr_AverageAnnualReturnSinceInception

(1.30%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class I | Calvert International Opportunities Fund | Return after taxes on distributions | Class I

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

25.45%

5 Years

rr_AverageAnnualReturnYear05

(2.16%)

Since Inception

rr_AverageAnnualReturnSinceInception

(1.28%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class I | Calvert International Opportunities Fund | Return after taxes on distributions and sale of Fund shares | Class I

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

17.13%

5 Years

rr_AverageAnnualReturnYear05

(1.64%)

Since Inception

rr_AverageAnnualReturnSinceInception

(0.91%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class I | Calvert International Opportunities Fund | MSCI EAFE SMID Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

19.43%

5 Years

rr_AverageAnnualReturnYear05

(1.71%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.89%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

Class I | Calvert International Opportunities Fund | Lipper International Small Mid Cap Core Funds Avg. (reflects no deduction for taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

19.82%

5 Years

rr_AverageAnnualReturnYear05

(1.54%)

Since Inception

rr_AverageAnnualReturnSinceInception

(2.62%)

Inception Date

rr_AverageAnnualReturnInceptionDate

May 31, 2007

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses to 1.20% through January 31, 2014. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

CALVERT WORLD VALUES FUND INC

Prospectus Date

rr_ProspectusDate

Jan. 31, 2013

Class A, B, C and Y | Calvert Capital Accumulation Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

CALVERT CAPITAL ACCUMULATION FUND
Class(Ticker):   A (CCAFX)   B (CWCBX)   C (CCACX)   Y (CCAYX)

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide long-term capital appreciation by investing primarily in mid-cap stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES OF THE FUND

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each
year as a % of the value of your investment)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 63% of its portfolio’s average value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

63.00%

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge reduces over time.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

50,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year; and
• the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests primarily in the common stocks of mid-size U.S. companies. The Fund currently defines mid-cap companies as those whose market capitalization falls within the range of the Russell Midcap Growth Index. As of December 31, 2012, the market capitalization of the Russell Midcap Growth Index companies ranged from $337 million to $21.2 billion with a weighted median level of $8.8 billion and a weighted average level of $9.3 billion. The Russell Midcap Growth Index is reconstituted annually. The Fund normally seeks to have a weighted average market capitalization between $2 billion and $12 billion.

Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price.

The Fund may also invest up to 25% of its net assets in foreign securities.

The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund..

The Subadvisor favors companies which have an above market average prospective growth rate, but sell at below market average valuations. The Subadvisor evaluates each stock in terms of its growth potential, the return for risk free investments, and the risk and reward potential for the company to determine a reasonable price for the stock.

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Mid-Cap Company Risk. Prices of mid-cap stocks can be more volatile than those of larger, more established companies. Mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance results for Class Y shares prior to 1/31/11 (the Class Y shares’ inception date) reflect the performance of Class A shares at net asset value. Actual Class Y share performance would have been higher than Class A share performance because Class Y, unlike Class A, has no Rule 12b-1 fees.

The return for each of the Fund’s other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart shows how the performance of the Class A shares has varied from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.calvert.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A at NAV

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	12/31/10	16.97	%
Worst Quarter (of periods shown)	12/31/08	-25.22	%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns (as
of 12/31/12) (with maximum sales
charge deducted, if any)

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Class A, B, C and Y | Calvert Capital Accumulation Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.75%

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.90%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.38%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.53%

1 Year

rr_ExpenseExampleYear01

623

3 Years

rr_ExpenseExampleYear03

935

5 Years

rr_ExpenseExampleYear05

1,270

10 Years

rr_ExpenseExampleYear10

2,212

2003

rr_AnnualReturn2003

30.55%

2004

rr_AnnualReturn2004

8.50%

2005

rr_AnnualReturn2005

(0.38%)

2006

rr_AnnualReturn2006

6.14%

2007

rr_AnnualReturn2007

9.56%

2008

rr_AnnualReturn2008

(36.90%)

2009

rr_AnnualReturn2009

30.35%

2010

rr_AnnualReturn2010

30.02%

2011

rr_AnnualReturn2011

2.20%

2012

rr_AnnualReturn2012

15.83%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter (of periods shown)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

16.97%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter (of periods shown)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(25.22%)

1 Year

rr_AverageAnnualReturnYear01

10.33%

5 Years

rr_AverageAnnualReturnYear05

3.81%

10 Years

rr_AverageAnnualReturnYear10

7.06%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Class B

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

5.00%

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.90%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

0.90%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.80%

1 Year

rr_ExpenseExampleYear01

783

3 Years

rr_ExpenseExampleYear03

1,268

5 Years

rr_ExpenseExampleYear05

1,679

10 Years

rr_ExpenseExampleYear10

2,824

1 Year

rr_ExpenseExampleNoRedemptionYear01

283

3 Years

rr_ExpenseExampleNoRedemptionYear03

868

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,479

10 Years

rr_ExpenseExampleNoRedemptionYear10

2,824

1 Year

rr_AverageAnnualReturnYear01

9.36%

5 Years

rr_AverageAnnualReturnYear05

3.48%

10 Years

rr_AverageAnnualReturnYear10

6.50%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

1.00%

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.90%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

0.43%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.33%

1 Year

rr_ExpenseExampleYear01

336

3 Years

rr_ExpenseExampleYear03

727

5 Years

rr_ExpenseExampleYear05

1,245

10 Years

rr_ExpenseExampleYear10

2,666

1 Year

rr_ExpenseExampleNoRedemptionYear01

236

3 Years

rr_ExpenseExampleNoRedemptionYear03

727

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,245

10 Years

rr_ExpenseExampleNoRedemptionYear10

2,666

1 Year

rr_AverageAnnualReturnYear01

13.95%

5 Years

rr_AverageAnnualReturnYear05

3.98%

10 Years

rr_AverageAnnualReturnYear10

6.72%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Class Y

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.90%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.39%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.29%

1 Year

rr_ExpenseExampleYear01

131

3 Years

rr_ExpenseExampleYear03

409

5 Years

rr_ExpenseExampleYear05

708

10 Years

rr_ExpenseExampleYear10

1,556

1 Year

rr_AverageAnnualReturnYear01

16.09%

5 Years

rr_AverageAnnualReturnYear05

4.90%

10 Years

rr_AverageAnnualReturnYear10

7.62%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Return after taxes on distributions | Class A

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

9.32%

5 Years

rr_AverageAnnualReturnYear05

3.42%

10 Years

rr_AverageAnnualReturnYear10

6.83%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Return after taxes on distributions and sale of Fund shares | Class A

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

8.06%

5 Years

rr_AverageAnnualReturnYear05

3.26%

10 Years

rr_AverageAnnualReturnYear10

6.23%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Russell Midcap Growth Index (reflects no deduction for fees,expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.81%

5 Years

rr_AverageAnnualReturnYear05

3.23%

10 Years

rr_AverageAnnualReturnYear10

10.32%

Class A, B, C and Y | Calvert Capital Accumulation Fund | Lipper Mid-Cap Core Funds Avg. (reflects no deduction for taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.59%

5 Years

rr_AverageAnnualReturnYear05

2.23%

10 Years

rr_AverageAnnualReturnYear10

8.89%

[1] The contingent deferred sales charge reduces over time.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	CALVERT WORLD VALUES FUND INC
Prospectus Date	rr_ProspectusDate	Jan. 31, 2013
Class A, C and Y | Calvert Emerging Markets Equity Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	CALVERT EMERGING MARKETS EQUITY FUND Class  (Ticker):   A (CVMAX)   C (CVMCX)   Y (CVMYX)
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks long-term capital appreciation by investing primarily in equity securities of companies located in emerging market countries, in accordance with the Fund’s sustainability and corporate responsibility criteria. This objective may be changed by the Fund’s Board of Directors without shareholder approval.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 31, 2014
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. Because the Fund has less than a full fiscal year of investment operations, no portfolio turnover rate is provided for the Fund at this time.
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge reduces over time.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that: you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods; your investment has a 5% return each year; the Fund’s operating expenses remain the same; and any Calvert expense limitation is in effect for the period indicated in the fee table above. Although your actual costs may be higher or lower, under these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	INVESTMENTS, RISKS AND PERFORMANCE Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund normally invests at least 80% of its assets, including borrowings for investment purposes, in equity securities of companies located in emerging market countries. The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy. Equity securities held by the Fund will primarily include common stock, preferred stock, depositary receipts, options on securities, and equity-equivalent securities, such as participatory notes (“P-notes”). Derivatives, such as futures, options on futures, and swaps, may also be held by the Fund incidental to its main investment strategy. The Subadvisor considers emerging market countries to be those included in the Fund’s benchmark index, the MSCI Emerging Markets Index; countries determined by the World Bank to have a low to middle income economy; and other countries or markets with similar emerging market characteristics as determined by the Subadvisor. A company is considered to be located in an emerging market country if it has a class of securities whose principal securities market is in an emerging market country; is organized under the laws of, or has a principal office in, an emerging market country; derives 50% or more of its total revenues or earnings from goods produced, sales made, or services provided in one or more emerging market countries; or maintains 50% or more of its assets in one or more emerging market countries. The Fund may invest in companies of any market capitalization size but seeks to have market capitalization size characteristics similar to that of the MSCI Emerging Markets Index. As of December 31, 2012, the market capitalization of the MSCI Emerging Markets Index companies ranged from $727 million to $259 billion, with a weighted median level of $18.2 billion and a weighted average level of $48.1 billion. The Fund is expected to invest its assets among companies located in emerging markets throughout the world. The Fund may also invest in securities denominated in foreign currencies and may engage in foreign currency transactions. The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund. The Subadvisor seeks to identify companies located in emerging market countries that are trading at a discount to what the Subadvisor believes to be their intrinsic value but have the potential to increase their book value. To this end, the Subadvisor combines a top-down approach to country analysis with a bottom-up approach to fundamental company research. The country analysis includes an assessment of the risks and opportunities for each emerging market country through in-depth quantitative and qualitative analysis. In addition, the country research process produces a ranking of emerging markets countries based on expected returns with greater active weights allocated to higher-ranking countries. The fundamental company research also utilizes a number of qualitative and quantitative methods. Portfolio construction is determined by the Subadvisor based on its level of conviction in the country and company with input from proprietary risk models. The Fund may sell a security when it no longer appears attractive by the Subadvisor or does not meet the Fund’s sustainability and corporate responsibility criteria. Sustainable and Responsible Investing. The Fund seeks to invest in emerging market companies whose products/services or industrial/ business practices contribute towards addressing one or more global sustainability challenges in their local and/or international markets, including development, poverty and health; environment and climate change; and rights and governance. Investments are first selected for financial soundness and then evaluated according to these sustainability and corporate responsibility criteria, the application of which is in the economic interest of the Fund and its shareholders.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund. Management Risk. The individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. Stock Market Risk. The market prices of stocks held by the Fund may fall. Market Capitalization Risks. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies. Prices of microcap securities are generally even more volatile and their markets are even less liquid relative to small-cap, mid-cap and large-cap securities. Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being. Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock. Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”). Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends. P-Note Risk. To the extent the Fund invests in P-notes, it is subject to certain risks in addition to the risks normally associated with a direct investment in the underlying foreign securities the P-note seeks to replicate. As the purchaser of a P-note, the Fund is relying on the creditworthiness of the counterparty issuing the P-note and does not have the same rights under a P-note as it would as a shareholder of the underlying issuer. Therefore, if a counterparty becomes insolvent, the Fund could lose the total value of its investment in the P-note. In addition, there is no assurance that there will be a trading market for a P-note or that the trading price of a P-note will equal the value of the underlying security. Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars. Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates. Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers. Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated. Derivatives Risk. In general, a derivative is a financial contract whose value is based on the value of a financial asset (such as a stock, bond, or currency), a physical asset (such as gold), or a market index (such as the S&P 500 Index). Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying asset, credit risk with respect to the counterparty, and liquidity risk. The Fund’s use of certain derivatives may also have a leveraging effect, which may increase the volatility of the Fund and reduce its returns.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	Because the Fund has less than a full calendar year of investment operations, no performance information is presented for the Fund at this time.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	Because the Fund has less than a full calendar year of investment operations, no performance information is presented for the Fund at this time.
Class A, C and Y | Calvert Emerging Markets Equity Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) on purchases (as a % of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.75%
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)	rr_RedemptionFeeOverRedemption	2.00%
Management fees	rr_ManagementFeesOverAssets	1.30%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other expenses	rr_OtherExpensesOverAssets	1.40%
Total annual fund operating expenses	rr_ExpensesOverAssets	2.95%
Less fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(1.17%)	[2]
Net expenses	rr_NetExpensesOverAssets	1.78%
1 Year	rr_ExpenseExampleYear01	647
3 Years	rr_ExpenseExampleYear03	1,239
Class A, C and Y | Calvert Emerging Markets Equity Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) on purchases (as a % of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)	rr_RedemptionFeeOverRedemption	2.00%
Management fees	rr_ManagementFeesOverAssets	1.30%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other expenses	rr_OtherExpensesOverAssets	2.81%
Total annual fund operating expenses	rr_ExpensesOverAssets	5.11%
Less fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(2.33%)	[2]
Net expenses	rr_NetExpensesOverAssets	2.78%
1 Year	rr_ExpenseExampleYear01	381
3 Years	rr_ExpenseExampleYear03	1,325
1 Year	rr_ExpenseExampleNoRedemptionYear01	281
3 Years	rr_ExpenseExampleNoRedemptionYear03	1,325
Class A, C and Y | Calvert Emerging Markets Equity Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) on purchases (as a % of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)	rr_RedemptionFeeOverRedemption	2.00%
Management fees	rr_ManagementFeesOverAssets	1.30%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	3.58%
Total annual fund operating expenses	rr_ExpensesOverAssets	4.88%
Less fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(3.35%)	[2]
Net expenses	rr_NetExpensesOverAssets	1.53%
1 Year	rr_ExpenseExampleYear01	156
3 Years	rr_ExpenseExampleYear03	789

[1] The contingent deferred sales charge reduces over time.

[2] The investment advisor has agreed to contractually limit direct net annual fund operating expenses for Class A, Class C and Class Y through January 31, 2014. Direct net operating expenses will not exceed 1.78% for Class A, 2.78% for Class C and 1.53% for Class Y. Calvert has further agreed to contractually limit direct net annual fund operating expenses for Class Y to 3.00% through January 31, 2023. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Class I | Calvert Capital Accumulation Fund

CALVERT CAPITAL ACCUMULATION FUND
Class  (Ticker):   I (CCPIX)

INVESTMENT OBJECTIVE

The Fund seeks to provide long-term capital appreciation by investing primarily in mid-cap stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Class I Calvert Capital Accumulation Fund
Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Annual Fund Operating Expenses		Class I Calvert Capital Accumulation Fund
Management fees		0.75%
Distribution and service (12b-1) fees		none
Other expenses		0.13%
Total annual fund operating expenses		0.88%
Less fee waiver and/or expense reimbursement	[1]	(0.02%)
Net expenses		0.86%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
Class I Calvert Capital Accumulation Fund	8,778	27,870	48,567	108,248

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 63% of its portfolio’s average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund invests primarily in the common stocks of mid-size U.S. companies. The Fund currently defines mid-cap companies as those whose market capitalization falls within the range of the Russell Midcap Growth Index. As of December 31, 2012, the market capitalization of the Russell Midcap Growth Index companies ranged from $337 million to $21.2 billion with a weighted median level of $8.8 billion and a weighted average level of $9.3 billion. The Russell Midcap Growth Index is reconstituted annually. The Fund normally seeks to have a weighted average market capitalization between $2 billion and $12 billion.

Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price. The Fund may also invest up to 25% of its net assets in foreign securities.

The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund.

The Subadvisor favors companies which have an above market average prospective growth rate, but sell at below market average valuations. The Subadvisor evaluates each stock in terms of its growth potential, the return for risk free investments, and the risk and reward potential for the company to determine a reasonable price for the stock.

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Mid-Cap Company Risk. Prices of mid-cap stocks can be more volatile than those of larger, more established companies. Mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall.

Performance

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class I shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

No shareholders held Class I shares for the period from January 18, 2002 through June 3, 2003. Performance results for Class I shares for this period reflect the performance of Class A shares at net asset value. Actual Class I share performance would have been higher than Class A share performance because Class I, unlike Class A, has no Rule 12b-1 fees.

Calendar Year Total Returns

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	12/31/10	17.19	%
Worst Quarter (of periods shown)	12/31/08	-25.02	%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Average Annual Total Returns
(as of 12/31/12)

Average Annual Total Returns Class I	1 Year	5 Years	10 Years
Calvert Capital Accumulation Fund	16.60%	5.69%	8.44%
Calvert Capital Accumulation Fund Return after taxes on distributions	15.61%	5.32%	8.23%
Calvert Capital Accumulation Fund Return after taxes on distributions and sale of Fund shares	12.10%	4.90%	7.49%
Calvert Capital Accumulation Fund Russell Midcap Growth Index (reflects no deduction for fees,expenses or taxes)	15.81%	3.23%	10.32%
Calvert Capital Accumulation Fund Lipper Mid-Cap Core Funds Avg. (reflects no deduction for taxes)	15.59%	2.23%	8.89%

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses to 0.86% through January 31, 2014. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

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Class I | Calvert Emerging Markets Equity Fund

CALVERT EMERGING MARKETS EQUITY FUND
Class  (Ticker):   I (CVMIX)

INVESTMENT OBJECTIVE

The Fund seeks long-term capital appreciation by investing primarily in equity securities of companies located in emerging market countries, in accordance with the Fund’s sustainability and corporate responsibility criteria. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Class I Calvert Emerging Markets Equity Fund
Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as
a % of the value of your investment)

Annual Fund Operating Expenses		Class I Calvert Emerging Markets Equity Fund
Management fees		1.05%
Distribution and service (12b-1) fees		none
Other expenses		0.79%
Total annual fund operating expenses		1.84%
Less fee waiver and/or expense reimbursement	[1]	(0.41%)
Net expenses		1.43%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example (USD $)	1 Year	3 Years
Class I Calvert Emerging Markets Equity Fund	14,555	54,001

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. Because the Fund has less than a full fiscal year of investment operations, no portfolio turnover rate is provided for the Fund at this time.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund normally invests at least 80% of its assets, including borrowings for investment purposes, in equity securities of companies located in emerging market countries. The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy.

Equity securities held by the Fund will primarily include common stock, preferred stock, depositary receipts, options on securities, and equity-equivalent securities, such as participatory notes (“P-notes”). Derivatives, such as futures, options on futures and swaps, may also be held by the Fund incidental to its main investment strategy.

The Subadvisor considers emerging market countries to be those included in the Fund’s benchmark index, the MSCI Emerging Markets Index; countries determined by the World Bank to have a low to middle income economy; and other countries or markets with similar emerging market characteristics as determined by the Subadvisor. A company is considered to be located in an emerging market country if it has a class of securities whose principal securities market is in an emerging market country; is organized under the laws of, or has a principal office in, an emerging market country; derives 50% or more of its total revenues or earnings from goods produced, sales made, or services provided in one or more emerging market countries; or maintains 50% or more of its assets in one or more emerging market countries.

The Fund may invest in companies of any market capitalization size but seeks to have market capitalization size characteristics similar to that of the MSCI Emerging Markets Index. As of December 31, 2012, the market capitalization of the MSCI Emerging Markets Index companies ranged from $727 million to $259 billion with a weighted median level of $18.2 billion and a weighted average level of $48.1 billion. The Fund is expected to invest its assets among companies located in emerging markets throughout the world. The Fund may also invest in securities denominated in foreign currencies and may engage in foreign currency transactions.

The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund.

The Subadvisor seeks to identify companies located in emerging market countries that are trading at a discount to what the Subadvisor believes to be their intrinsic value but have the potential to increase their book value. To this end, the Subadvisor combines a top-down approach to country analysis with a bottom-up approach to fundamental company research. The country analysis includes an assessment of the risks and opportunities for each emerging market country through in-depth quantitative and qualitative analysis. In addition, the country research process produces a ranking of emerging markets countries based on expected returns with greater active weights allocated to higher-ranking countries. The fundamental company research also utilizes a number of qualitative and quantitative methods. Portfolio construction is determined by the Subadvisor based on its level of conviction in the country and company with input from proprietary risk models.

The Fund may sell a security when it no longer appears attractive by the Subadvisor or does not meet the Fund’s sustainability and corporate responsibility criteria.

Sustainable and Responsible Investing. The Fund seeks to invest in emerging market companies whose products/services or industrial/ business practices contribute towards addressing one or more global sustainability challenges in their local and/or international markets, including development, poverty and health; environment and climate change; and rights and governance.

Investments are first selected for financial soundness and then evaluated according to these sustainability and corporate responsibility criteria, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Management Risk. The individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Market Capitalization Risks. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies. Prices of microcap securities are generally even more volatile and their markets are even less liquid relative to small-cap, mid-cap and large-cap securities.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”). Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

P-Note Risk. To the extent the Fund invests in P-notes, it is subject to certain risks in addition to the risks normally associated with a direct investment in the underlying foreign securities the P-note seeks to replicate. As the purchaser of a P-note, the Fund is relying on the creditworthiness of the counterparty issuing the P-note and does not have the same rights under a P-note as it would as a shareholder of the underlying issuer. Therefore, if a counterparty becomes insolvent, the Fund could lose the total value of its investment in the P-note. In addition, there is no assurance that there will be a trading market for a P-note or that the trading price of a P-note will equal the value of the underlying security.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Derivatives Risk. In general, a derivative is a financial contract whose value is based on the value of a financial asset (such as a stock, bond, or currency), a physical asset (such as gold), or a market index (such as the S&P 500 Index). Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying asset, credit risk with respect to the counterparty, and liquidity risk. The Fund’s use of certain derivatives may also have a leveraging effect, which may increase the volatility of the Fund and reduce its returns.

Performance

Because the Fund has less than a full calendar year of investment operations, no performance information is presented for the Fund at this time.

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses to 1.43% through January 31, 2014. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

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Class A, B, C and Y | Calvert Capital Accumulation Fund

CALVERT CAPITAL ACCUMULATION FUND
Class(Ticker):   A (CCAFX)   B (CWCBX)   C (CCACX)   Y (CCAYX)

INVESTMENT OBJECTIVE

The Fund seeks to provide long-term capital appreciation by investing primarily in mid-cap stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Class A, B, C and Y Calvert Capital Accumulation Fund		Class A	Class B	Class C	Class Y
Maximum sales charge (load) on purchases (as a % of offering price)		4.75%	none	none	none
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	[1]	none	5.00%	1.00%	none
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)		2.00%	2.00%	2.00%	2.00%

Annual Fund Operating Expenses (expenses that you pay each
year as a % of the value of your investment)

Annual Fund Operating Expenses Class A, B, C and Y Calvert Capital Accumulation Fund	Class A	Class B	Class C	Class Y
Management fees	0.90%	0.90%	0.90%	0.90%
Distribution and service (12b-1) fees	0.25%	1.00%	1.00%	none
Other expenses	0.38%	0.90%	0.43%	0.39%
Total annual fund operating expenses	1.53%	2.80%	2.33%	1.29%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year; and
• the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example Class A, B, C and Y Calvert Capital Accumulation Fund (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	623	935	1,270	2,212
Class B	783	1,268	1,679	2,824
Class C	336	727	1,245	2,666
Class Y	131	409	708	1,556

Expense Example, No Redemption Class A, B, C and Y Calvert Capital Accumulation Fund (USD $)	1 Year	3 Years	5 Years	10 Years
Class B	283	868	1,479	2,824
Class C	236	727	1,245	2,666

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 63% of its portfolio’s average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund invests primarily in the common stocks of mid-size U.S. companies. The Fund currently defines mid-cap companies as those whose market capitalization falls within the range of the Russell Midcap Growth Index. As of December 31, 2012, the market capitalization of the Russell Midcap Growth Index companies ranged from $337 million to $21.2 billion with a weighted median level of $8.8 billion and a weighted average level of $9.3 billion. The Russell Midcap Growth Index is reconstituted annually. The Fund normally seeks to have a weighted average market capitalization between $2 billion and $12 billion.

Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price.

The Fund may also invest up to 25% of its net assets in foreign securities.

The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund..

The Subadvisor favors companies which have an above market average prospective growth rate, but sell at below market average valuations. The Subadvisor evaluates each stock in terms of its growth potential, the return for risk free investments, and the risk and reward potential for the company to determine a reasonable price for the stock.

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Mid-Cap Company Risk. Prices of mid-cap stocks can be more volatile than those of larger, more established companies. Mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall.

Performance

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance results for Class Y shares prior to 1/31/11 (the Class Y shares’ inception date) reflect the performance of Class A shares at net asset value. Actual Class Y share performance would have been higher than Class A share performance because Class Y, unlike Class A, has no Rule 12b-1 fees.

The return for each of the Fund’s other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Calendar Year Total Returns for Class A at NAV

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	12/31/10	16.97	%
Worst Quarter (of periods shown)	12/31/08	-25.22	%

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Average Annual Total Returns (as
of 12/31/12) (with maximum sales
charge deducted, if any)

Average Annual Total Returns Class A, B, C and Y Calvert Capital Accumulation Fund	1 Year	5 Years	10 Years
Class A	10.33%	3.81%	7.06%
Class A Return after taxes on distributions	9.32%	3.42%	6.83%
Class A Return after taxes on distributions and sale of Fund shares	8.06%	3.26%	6.23%
Class B	9.36%	3.48%	6.50%
Class C	13.95%	3.98%	6.72%
Class Y	16.09%	4.90%	7.62%
Russell Midcap Growth Index (reflects no deduction for fees,expenses or taxes)	15.81%	3.23%	10.32%
Lipper Mid-Cap Core Funds Avg. (reflects no deduction for taxes)	15.59%	2.23%	8.89%

[1] The contingent deferred sales charge reduces over time.

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Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

CALVERT WORLD VALUES FUND INC

Prospectus Date

rr_ProspectusDate

Jan. 31, 2013

Class I | Calvert International Equity Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

CALVERT INTERNATIONAL EQUITY FUND
Class  (Ticker):   I (CWVIX)

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide a high total return consistent with reasonable risk by investing primarily in a diversified portfolio of stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES OF THE FUND

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 43% of its portfolio’s average value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

43.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year; and
• the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund normally invests at least 80% of its net assets, including borrowings for investment purposes, in equity securities of foreign companies (common and preferred stock and the depositary receipts on such stock). The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy. Using a core investment approach, the Fund invests primarily in common and preferred stocks of non-U.S. large-cap companies. The Fund defines non-U.S. large-cap companies as those whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Global Investable Market Index (“IMI”). As of December 31, 2012, the market capitalization of the MSCI EAFE IMI companies ranged from $47 million to $225 billion with a weighted median level of $28.3 billion and a weighted average level of $51.5 billion. MSCI Barra reassesses the MSCI EAFE IMI quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters. The Fund normally seeks to have a weighted average market capitalization of at least $10 billion.

The Fund generally holds stocks of companies from the constituent countries of the MSCI EAFE IMI, but may invest in other countries, including emerging markets stocks. The Fund will invest in at least three different countries. The Advisor and the Subadvisors focus on deriving returns from individual stock selection (bottom-up). The Advisor and the Subadvisors utilize fundamental insights arrived at through qualitative and quantitative analysis of a broad range of non-U.S. securities to identify stocks expected to provide returns superior to that of the benchmark. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE IMI benchmark by balancing the risks and opportunities among the portions of the portfolio managed by the Advisor and each Subadvisor. The Advisor may shift allocations among the Advisor and the Subadvisors depending on market conditions, the Advisor’s or Subadvisors’ respective style biases, and performance opportunities.

The Fund invests no more than 5% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets among the portions of the portfolio managed by the Advisor and each Subadvisor may cause the Fund to underperform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Large-Cap Company Risk. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Advisor and the Subadvisors make investment decisions independently from each other. It is possible that the Advisor’s and each Subadvisor’s investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class I shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart shows how the performance of the Class I shares has varied from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.calvert.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Return

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	23.79	%
Worst Quarter (of periods shown)	12/31/08	-23.93	%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(as of 12/31/12)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Class I | Calvert International Equity Fund | Class I

Risk/Return:

rr_RiskReturnAbstract

Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.90%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.19%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.02%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.11%

1 Year

rr_ExpenseExampleYear01

11,316

3 Years

rr_ExpenseExampleYear03

35,285

5 Years

rr_ExpenseExampleYear05

61,156

10 Years

rr_ExpenseExampleYear10

135,169

2003

rr_AnnualReturn2003

30.11%

2004

rr_AnnualReturn2004

18.29%

2005

rr_AnnualReturn2005

11.88%

2006

rr_AnnualReturn2006

27.47%

2007

rr_AnnualReturn2007

2.52%

2008

rr_AnnualReturn2008

(45.98%)

2009

rr_AnnualReturn2009

22.88%

2010

rr_AnnualReturn2010

6.62%

2011

rr_AnnualReturn2011

(13.31%)

2012

rr_AnnualReturn2012

18.49%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter (of periods shown)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

23.79%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter (of periods shown)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(23.93%)

1 Year

rr_AverageAnnualReturnYear01

18.49%

5 Years

rr_AverageAnnualReturnYear05

(6.18%)

10 Years

rr_AverageAnnualReturnYear10

5.05%

Class I | Calvert International Equity Fund | Return after taxes on distributions | Class I

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

18.49%

5 Years

rr_AverageAnnualReturnYear05

(6.10%)

10 Years

rr_AverageAnnualReturnYear10

4.64%

Class I | Calvert International Equity Fund | Return after taxes on distributions and sale of Fund shares | Class I

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

12.66%

5 Years

rr_AverageAnnualReturnYear05

(4.85%)

10 Years

rr_AverageAnnualReturnYear10

4.63%

Class I | Calvert International Equity Fund | MSCI EAFE IMI (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

18.20%

5 Years

rr_AverageAnnualReturnYear05

(2.90%)

10 Years

rr_AverageAnnualReturnYear10

9.08%

Class I | Calvert International Equity Fund | Lipper International Multi-Cap Growth Funds Avg. (reflects no deduction for taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

18.03%

5 Years

rr_AverageAnnualReturnYear05

(3.03%)

10 Years

rr_AverageAnnualReturnYear10

8.72%

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

CALVERT WORLD VALUES FUND INC

Prospectus Date

rr_ProspectusDate

Jan. 31, 2013

Class A, B, C and Y | Calvert International Equity Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

CALVERT INTERNATIONAL EQUITY FUND
Class (Ticker):   A (CWVGX)   B (CWVBX)   C (CWVCX)   Y (CWEYX)

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide a high total return consistent with reasonable risk by investing primarily in a diversified portfolio of stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES OF THE FUND

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

January 31, 2014

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 43% of its portfolio’s average value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

43.00%

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge reduces over time.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

50,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund normally invests at least 80% of its net assets, including borrowings for investment purposes, in equity securities of foreign companies (common and preferred stock and the depositary receipts on such stock). The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy. Using a core investment approach, the Fund invests primarily in common and preferred stocks of non-U.S. large-cap companies. The Fund defines non-U.S. large-cap companies as those whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Global Investable Market Index (“IMI”). As of December 31, 2012, the market capitalization of the MSCI EAFE IMI companies ranged from $47 million to $225 billion with a weighted median level of $28.3 billion an a weighted average level of $51.5 billion. MSCI Barra reassesses the MSCI EAFE IMI quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters. The Fund normally seeks to have a weighted average market capitalization of at least $10 billion.

The Fund generally holds stocks of companies from the constituent countries of the MSCI EAFE IMI, but may invest in other countries, including emerging markets stocks. The Fund will invest in at least three different countries. The Advisor and the Subadvisors focus on deriving returns from individual stock selection (bottom-up). The Advisor and the Subadvisors utilize fundamental insights arrived at through qualitative and quantitative analysis of a broad range of non-U.S. securities to identify stocks expected to provide returns superior to that of the benchmark. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE IMI benchmark by balancing the risks and opportunities among the portions of the portfolio managed by the Advisor and each Subadvisor. The Advisor may shift allocations among the Advisor and the Subadvisors depending on market conditions, the Advisor's or Subadvisors' respective style biases, and performance opportunities.

The Fund invests no more than 5% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets among the portions of the portfolio managed by the Advisor and each Subadvisor may cause the Fund to under-perform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates.

These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Large-Cap Company Risk. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Advisor and the Subadvisors make investment decisions independently from each other. It is possible that the Advisor's and each Subadvisor's investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund’s performance over time to that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance results for Class Y shares prior to 10/31/08 (the Class Y shares’ inception date) reflect the performance of Class A shares at net asset value. Actual Class Y share performance would have been higher than Class A share performance because Class Y, unlike Class A, has no Rule 12b-1 fees.

The return for each of the Fund’s other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart shows how the performance of the Class A shares has varied from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.calvert.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A at NAV

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	23.55	%
Worst Quarter (of periods shown)	12/31/08	-24.02	%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(as of 12/31/12) (with maximum sales
charge deducted, if any)

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Class A, B, C and Y | Calvert International Equity Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.75%

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.10%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.49%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.02%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.86%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Net expenses

rr_NetExpensesOverAssets

1 Year

rr_ExpenseExampleYear01

655

3 Years

rr_ExpenseExampleYear03

1,032

5 Years

rr_ExpenseExampleYear05

1,433

10 Years

rr_ExpenseExampleYear10

2,551

2003

rr_AnnualReturn2003

29.00%

2004

rr_AnnualReturn2004

17.25%

2005

rr_AnnualReturn2005

11.09%

2006

rr_AnnualReturn2006

26.60%

2007

rr_AnnualReturn2007

1.90%

2008

rr_AnnualReturn2008

(46.32%)

2009

rr_AnnualReturn2009

21.74%

2010

rr_AnnualReturn2010

5.82%

2011

rr_AnnualReturn2011

(13.91%)

2012

rr_AnnualReturn2012

17.61%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter (of periods shown)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

23.55%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter (of periods shown)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(24.02%)

1 Year

rr_AverageAnnualReturnYear01

11.99%

5 Years

rr_AverageAnnualReturnYear05

(7.79%)

10 Years

rr_AverageAnnualReturnYear10

3.75%

Class A, B, C and Y | Calvert International Equity Fund | Class B

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

5.00%

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.10%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

1.08%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.02%

Total annual fund operating expenses

rr_ExpensesOverAssets

3.20%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Net expenses

rr_NetExpensesOverAssets

1 Year

rr_ExpenseExampleYear01

823

3 Years

rr_ExpenseExampleYear03

1,386

5 Years

rr_ExpenseExampleYear05

1,874

10 Years

rr_ExpenseExampleYear10

3,194

1 Year

rr_ExpenseExampleNoRedemptionYear01

323

3 Years

rr_ExpenseExampleNoRedemptionYear03

986

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,674

10 Years

rr_ExpenseExampleNoRedemptionYear10

3,194

1 Year

rr_AverageAnnualReturnYear01

11.21%

5 Years

rr_AverageAnnualReturnYear05

(8.15%)

10 Years

rr_AverageAnnualReturnYear10

3.09%

Class A, B, C and Y | Calvert International Equity Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

1.00%

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.10%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

0.62%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.02%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.74%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Net expenses

rr_NetExpensesOverAssets

1 Year

rr_ExpenseExampleYear01

377

3 Years

rr_ExpenseExampleYear03

850

5 Years

rr_ExpenseExampleYear05

1,450

10 Years

rr_ExpenseExampleYear10

3,070

1 Year

rr_ExpenseExampleNoRedemptionYear01

277

3 Years

rr_ExpenseExampleNoRedemptionYear03

850

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,450

10 Years

rr_ExpenseExampleNoRedemptionYear10

3,070

1 Year

rr_AverageAnnualReturnYear01

15.56%

5 Years

rr_AverageAnnualReturnYear05

(7.71%)

10 Years

rr_AverageAnnualReturnYear10

3.35%

Class A, B, C and Y | Calvert International Equity Fund | Class Y

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) on purchases (as a % of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

1.10%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.36%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.02%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.48%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[2]

Net expenses

rr_NetExpensesOverAssets

1.41%

1 Year

rr_ExpenseExampleYear01

144

3 Years

rr_ExpenseExampleYear03

461

5 Years

rr_ExpenseExampleYear05

801

10 Years

rr_ExpenseExampleYear10

1,762

1 Year

rr_AverageAnnualReturnYear01

18.04%

5 Years

rr_AverageAnnualReturnYear05

(6.55%)

10 Years

rr_AverageAnnualReturnYear10

4.44%

Class A, B, C and Y | Calvert International Equity Fund | Return after taxes on distributions | Class A

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

11.99%

5 Years

rr_AverageAnnualReturnYear05

(7.75%)

10 Years

rr_AverageAnnualReturnYear10

3.35%

Class A, B, C and Y | Calvert International Equity Fund | Return after taxes on distributions and sale of Fund shares | Class A

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

8.10%

5 Years

rr_AverageAnnualReturnYear05

(6.26%)

10 Years

rr_AverageAnnualReturnYear10

3.42%

Class A, B, C and Y | Calvert International Equity Fund | MSCI EAFE IMI (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

18.20%

5 Years

rr_AverageAnnualReturnYear05

(2.90%)

10 Years

rr_AverageAnnualReturnYear10

9.08%

Class A, B, C and Y | Calvert International Equity Fund | Lipper International Multi-Cap Growth Funds Avg. (reflects no deduction for taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

18.03%

5 Years

rr_AverageAnnualReturnYear05

(3.03%)

10 Years

rr_AverageAnnualReturnYear10

8.72%

[1] The contingent deferred sales charge reduces over time.

[2] The investment advisor has agreed to contractually limit direct net annual fund operating expenses for Class Y to 1.39% through January 31, 2014. These expense limitations do not limit the acquired fund fees and expenses paid indirectly by a shareholder. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Document and Entity Information	12 Months Ended
	Jan. 31, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Sep. 30, 2012
Registrant Name	CALVERT WORLD VALUES FUND INC
Central Index Key	0000884110
Amendment Flag	false
Document Creation Date	Jan. 30, 2013
Document Effective Date	Jan. 31, 2013
Prospectus Date	Jan. 31, 2013

XML

Class A, C and Y | Calvert International Opportunities Fund

CALVERT INTERNATIONAL OPPORTUNITIES FUND
Class (Ticker):   A (CIOAX)   C (COICX)   Y (CWVYX)

INVESTMENT OBJECTIVE

The Fund seeks long-term capital appreciation through holdings that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Class A, C and Y Calvert International Opportunities Fund		Class A	Class C	Class Y
Maximum sales charge (load) on purchases (as a % of offering price)		4.75%	none	none
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	[1]	none	1.00%	none
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)		2.00%	2.00%	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as
a % of the value of your investment)

Annual Fund Operating Expenses Class A, C and Y Calvert International Opportunities Fund		Class A	Class C	Class Y
Management fees		1.15%	1.15%	1.15%
Distribution and Service (12b-1) Fees		0.25%	1.00%	none
Other expenses		0.95%	1.50%	1.34%
Total annual fund operating expenses		2.35%	3.65%	2.49%
Less fee waiver and/or expense reimbursement	[1]	(0.69%)	(1.15%)	(1.08%)
Net expenses		1.66%	2.50%	1.41%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example Class A, C and Y Calvert International Opportunities Fund (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	636	1,111	1,611	2,983
Class C	353	1,012	1,791	3,832
Class Y	144	672	1,228	2,744

Expense Example, No Redemption (USD $)	1 Year	3 Years	5 Years	10 Years
Class A, C and Y Calvert International Opportunities Fund Class C	253	1,012	1,791	3,832

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 56% of its portfolio’s average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund invests primarily in common and preferred stocks of non-U.S. small-cap to mid-cap companies, which the Fund defines as companies whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Small-Mid (“SMID”) Index. As of December 31, 2012, the market capitalization of the MSCI EAFE SMID companies ranged from $43 million to $41 billion with a weighted median level of $3.6 billion and a weighted average level of $4.6 billion. MSCI Barra reassesses the MSCI EAFE SMID Index quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters. The Fund normally seeks to have a weighted average market capitalization between $2 billion and $5 billion.

The Fund invests no more than 10% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund primarily holds stocks of companies in developed countries but as an internationally diverse fund, it may invest in any geographic region of the world (at least three different countries) if a Subadvisor deems the company attractive. The stock selection process of each Subadvisor does not utilize a predetermined geographic allocation, and each Subadvisor primarily uses a bottom-up approach focused on fundamental analysis of stocks of individual companies across all geographic regions. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE SMID benchmark by balancing the risks and opportunities between the portion of the portfolio managed by each Subadvisor. The Advisor may shift allocations between the Subadvisors depending on market conditions, the Subadvisors' respective style biases, and performance opportunities. The Fund may invest up to 20% of its assets in securities of issuers in emerging market countries. The securities in which the Fund invests are often denominated and traded in foreign currencies.

Attractive companies are identified through a combination of valuation and growth metrics that seeks to identify companies with a sustainable competitive advantage. Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets between the portion of the portfolio managed by each Subadvisor may cause the Fund to underperform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Small-Cap and Mid-Cap Company Risk. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by a Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Subadvisors make investment decisions independently from each other. It is possible that the Subadvisors' investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Performance

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance results for Class Y shares prior to 10/31/08 (the Class Y shares’ inception date) reflect the performance of Class A shares at net asset value. Actual Class Y share performance would have been higher than Class A share performance because Class Y, unlike Class A, has no Rule 12b-1 fees.

The return for each of the Fund’s other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Calendar Year Total Returns for Class A at NAV

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	24.05	%
Worst Quarter (of periods shown)	12/31/08	-24.15	%

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Average Annual Total Returns Since
(as of 12/31/12) (with maximum
sales charge deducted, if any

Average Annual Total Returns Class A, C and Y Calvert International Opportunities Fund	1 Year	5 Years	Since Inception	Inception Date
Class A	19.05%	(3.55%)	(2.60%)	May 31, 2007
Class A After Taxes on Distributions	18.99%	(3.58%)	(2.62%)	May 31, 2007
Class A After Taxes on Distributions and Sales	12.82%	(2.93%)	(2.13%)	May 31, 2007
Class Y	25.25%	(2.44%)	(1.59%)	May 31, 2007
Class Y MSCI EAFE SMID Index (reflects no deduction for fees, expenses or taxes)	19.43%	(1.71%)	(2.89%)	May 31, 2007
Class Y Lipper International Small Mid Cap Core Funds Avg. (reflects no deduction for taxes)	19.82%	(1.54%)	(2.62%)	May 31, 2007
Class C	22.83%	(3.42%)	(2.29%)	Jul. 31, 2007
Class C MSCI EAFE SMID Index (reflects no deduction for fees, expenses or taxes)	19.43%	(1.71%)	(2.62%)	Jul. 31, 2007
Class C Lipper International Small Mid Cap Core Funds Avg. (reflects no deduction for taxes)	19.82%	(1.54%)	(2.75%)	Jul. 31, 2007

[1] The contingent deferred sales charge reduces over time.

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses for Class A, Class C, and Class Y through January 31, 2014. Direct net operating expenses will not exceed 1.66% for Class A, 2.50% for Class C, and 1.41% for Class Y. Calvert has further agreed to contractually limit direct net actual fund operating expenses for Class Y to 3.00% through January 31, 2023. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Class A, C and Y | Calvert Emerging Markets Equity Fund

CALVERT EMERGING MARKETS EQUITY FUND
Class  (Ticker):   A (CVMAX)   C (CVMCX)   Y (CVMYX)

INVESTMENT OBJECTIVE

The Fund seeks long-term capital appreciation by investing primarily in equity securities of companies located in emerging market countries, in accordance with the Fund’s sustainability and corporate responsibility criteria. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Class A, C and Y Calvert Emerging Markets Equity Fund		Class A	Class C	Class Y
Maximum sales charge (load) on purchases (as a % of offering price)		4.75%	none	none
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	[1]	none	1.00%	none
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)		2.00%	2.00%	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as
a % of the value of your investment)

Annual Fund Operating Expenses Class A, C and Y Calvert Emerging Markets Equity Fund		Class A	Class C	Class Y
Management fees		1.30%	1.30%	1.30%
Distribution and service (12b-1) fees		0.25%	1.00%	none
Other expenses		1.40%	2.81%	3.58%
Total annual fund operating expenses		2.95%	5.11%	4.88%
Less fee waiver and/or expense reimbursement	[1]	(1.17%)	(2.33%)	(3.35%)
Net expenses		1.78%	2.78%	1.53%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example Class A, C and Y Calvert Emerging Markets Equity Fund (USD $)	1 Year	3 Years
Class A	647	1,239
Class C	381	1,325
Class Y	156	789

Expense Example, No Redemption (USD $)	1 Year	3 Years
Class A, C and Y Calvert Emerging Markets Equity Fund Class C	281	1,325

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. Because the Fund has less than a full fiscal year of investment operations, no portfolio turnover rate is provided for the Fund at this time.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund normally invests at least 80% of its assets, including borrowings for investment purposes, in equity securities of companies located in emerging market countries. The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy.

Equity securities held by the Fund will primarily include common stock, preferred stock, depositary receipts, options on securities, and equity-equivalent securities, such as participatory notes (“P-notes”). Derivatives, such as futures, options on futures, and swaps, may also be held by the Fund incidental to its main investment strategy.

The Subadvisor considers emerging market countries to be those included in the Fund’s benchmark index, the MSCI Emerging Markets Index; countries determined by the World Bank to have a low to middle income economy; and other countries or markets with similar emerging market characteristics as determined by the Subadvisor. A company is considered to be located in an emerging market country if it has a class of securities whose principal securities market is in an emerging market country; is organized under the laws of, or has a principal office in, an emerging market country; derives 50% or more of its total revenues or earnings from goods produced, sales made, or services provided in one or more emerging market countries; or maintains 50% or more of its assets in one or more emerging market countries.

The Fund may invest in companies of any market capitalization size but seeks to have market capitalization size characteristics similar to that of the MSCI Emerging Markets Index. As of December 31, 2012, the market capitalization of the MSCI Emerging Markets Index companies ranged from $727 million to $259 billion, with a weighted median level of $18.2 billion and a weighted average level of $48.1 billion. The Fund is expected to invest its assets among companies located in emerging markets throughout the world. The Fund may also invest in securities denominated in foreign currencies and may engage in foreign currency transactions.

The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund.

The Subadvisor seeks to identify companies located in emerging market countries that are trading at a discount to what the Subadvisor believes to be their intrinsic value but have the potential to increase their book value. To this end, the Subadvisor combines a top-down approach to country analysis with a bottom-up approach to fundamental company research. The country analysis includes an assessment of the risks and opportunities for each emerging market country through in-depth quantitative and qualitative analysis. In addition, the country research process produces a ranking of emerging markets countries based on expected returns with greater active weights allocated to higher-ranking countries. The fundamental company research also utilizes a number of qualitative and quantitative methods. Portfolio construction is determined by the Subadvisor based on its level of conviction in the country and company with input from proprietary risk models.

The Fund may sell a security when it no longer appears attractive by the Subadvisor or does not meet the Fund’s sustainability and corporate responsibility criteria.

Sustainable and Responsible Investing. The Fund seeks to invest in emerging market companies whose products/services or industrial/ business practices contribute towards addressing one or more global sustainability challenges in their local and/or international markets, including development, poverty and health; environment and climate change; and rights and governance.

Investments are first selected for financial soundness and then evaluated according to these sustainability and corporate responsibility criteria, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Management Risk. The individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Market Capitalization Risks. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. Prices of small-cap and mid-cap stocks can be more volatile than those of larger, more established companies. Small-cap and mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies. Prices of microcap securities are generally even more volatile and their markets are even less liquid relative to small-cap, mid-cap and large-cap securities.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”). Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

P-Note Risk. To the extent the Fund invests in P-notes, it is subject to certain risks in addition to the risks normally associated with a direct investment in the underlying foreign securities the P-note seeks to replicate. As the purchaser of a P-note, the Fund is relying on the creditworthiness of the counterparty issuing the P-note and does not have the same rights under a P-note as it would as a shareholder of the underlying issuer. Therefore, if a counterparty becomes insolvent, the Fund could lose the total value of its investment in the P-note. In addition, there is no assurance that there will be a trading market for a P-note or that the trading price of a P-note will equal the value of the underlying security.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates. These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Derivatives Risk. In general, a derivative is a financial contract whose value is based on the value of a financial asset (such as a stock, bond, or currency), a physical asset (such as gold), or a market index (such as the S&P 500 Index). Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying asset, credit risk with respect to the counterparty, and liquidity risk. The Fund’s use of certain derivatives may also have a leveraging effect, which may increase the volatility of the Fund and reduce its returns.

Performance

Because the Fund has less than a full calendar year of investment operations, no performance information is presented for the Fund at this time.

[1] The contingent deferred sales charge reduces over time.

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses for Class A, Class C and Class Y through January 31, 2014. Direct net operating expenses will not exceed 1.78% for Class A, 2.78% for Class C and 1.53% for Class Y. Calvert has further agreed to contractually limit direct net annual fund operating expenses for Class Y to 3.00% through January 31, 2023. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Class A, B, C and Y | Calvert International Equity Fund

CALVERT INTERNATIONAL EQUITY FUND
Class (Ticker):   A (CWVGX)   B (CWVBX)   C (CWVCX)   Y (CWEYX)

INVESTMENT OBJECTIVE

The Fund seeks to provide a high total return consistent with reasonable risk by investing primarily in a diversified portfolio of stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert mutual funds that are not money market funds. More information about these and other discounts is available from your financial professional and under “Choosing a Share Class” on page 89 and “Reduced Sales Charges” on page 92 of this Prospectus, and under “Method of Distribution” on page 50 of the Fund’s Statement of Additional Information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Class A, B, C and Y Calvert International Equity Fund		Class A	Class B	Class C	Class Y
Maximum sales charge (load) on purchases (as a % of offering price)		4.75%	none	none	none
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower)	[1]	none	5.00%	1.00%	none
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)		2.00%	2.00%	2.00%	2.00%

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Annual Fund Operating Expenses Class A, B, C and Y Calvert International Equity Fund		Class A	Class B	Class C	Class Y
Management fees		1.10%	1.10%	1.10%	1.10%
Distribution and service (12b-1) fees		0.25%	1.00%	1.00%	none
Other expenses		0.49%	1.08%	0.62%	0.36%
Acquired fund fees and expenses		0.02%	0.02%	0.02%	0.02%
Total annual fund operating expenses		1.86%	3.20%	2.74%	1.48%
Less fee waiver and/or expense reimbursement	[1]				(0.07%)
Net expenses					1.41%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either redeem or hold your shares at the end of those periods;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Expense Example Class A, B, C and Y Calvert International Equity Fund (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	655	1,032	1,433	2,551
Class B	823	1,386	1,874	3,194
Class C	377	850	1,450	3,070
Class Y	144	461	801	1,762

Expense Example, No Redemption Class A, B, C and Y Calvert International Equity Fund (USD $)	1 Year	3 Years	5 Years	10 Years
Class B	323	986	1,674	3,194
Class C	277	850	1,450	3,070

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 43% of its portfolio’s average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

The Fund normally invests at least 80% of its net assets, including borrowings for investment purposes, in equity securities of foreign companies (common and preferred stock and the depositary receipts on such stock). The Fund will provide shareholders with at least 60 days’ notice before changing this 80% policy. Using a core investment approach, the Fund invests primarily in common and preferred stocks of non-U.S. large-cap companies. The Fund defines non-U.S. large-cap companies as those whose market capitalization falls within the range of the Morgan Stanley Capital International (“MSCI”) Europe, Australasia and Far East (“EAFE”) Global Investable Market Index (“IMI”). As of December 31, 2012, the market capitalization of the MSCI EAFE IMI companies ranged from $47 million to $225 billion with a weighted median level of $28.3 billion an a weighted average level of $51.5 billion. MSCI Barra reassesses the MSCI EAFE IMI quarterly and conducts full updating reviews twice per year and partial reviews in the other two quarters. The Fund normally seeks to have a weighted average market capitalization of at least $10 billion.

The Fund generally holds stocks of companies from the constituent countries of the MSCI EAFE IMI, but may invest in other countries, including emerging markets stocks. The Fund will invest in at least three different countries. The Advisor and the Subadvisors focus on deriving returns from individual stock selection (bottom-up). The Advisor and the Subadvisors utilize fundamental insights arrived at through qualitative and quantitative analysis of a broad range of non-U.S. securities to identify stocks expected to provide returns superior to that of the benchmark. The Advisor attempts to control the portfolio’s risk level and maximize the Fund’s return potential relative to the MSCI EAFE IMI benchmark by balancing the risks and opportunities among the portions of the portfolio managed by the Advisor and each Subadvisor. The Advisor may shift allocations among the Advisor and the Subadvisors depending on market conditions, the Advisor's or Subadvisors' respective style biases, and performance opportunities.

The Fund invests no more than 5% of its net assets in U.S. companies (excluding High Social Impact and Special Equities investments). See “Special Investment Programs” in this Prospectus.

The Fund may invest in American Depositary Receipts (“ADRs”), which may be sponsored or unsponsored, and Global Depositary Receipts (“GDRs”).

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result. The Advisor’s allocation of Fund assets among the portions of the portfolio managed by the Advisor and each Subadvisor may cause the Fund to under-perform.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Preferred Stock Risk. The market value of preferred stock generally decreases when interest rates rise and is affected by the issuer’s ability to make payments on the preferred stock.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets. Foreign securities include ADRs and GDRs. Unsponsored ADRs involve additional risks because U.S. reporting requirements do not apply and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall. GDRs can involve direct currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. ADRs indirectly bear currency risk because they represent an interest in securities that are not denominated in U.S. dollars.

Foreign Currency Transactions Risk. Transactions in foreign currency in connection with the purchase and sale of investments in foreign markets may result in foreign currency exposure and the potential for losses due to fluctuations in currency exchange rates.

These losses may occur without regard to the quality or performance of the investment itself. Foreign currency transactions may also prevent the Fund from realizing profits on favorable movements in exchange rates.

Large-Cap Company Risk. Large-cap companies may be unable to respond quickly to new competitive challenges such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Emerging Markets Risk. The risks of investing in emerging market securities are greater than those of investing in securities of developed foreign countries. These risks include volatile currency exchange rates, periods of high inflation, increased risk of default, greater social, economic and political uncertainty and instability, less governmental supervision and regulation of securities markets, weaker auditing and financial reporting standards, lack of liquidity in the markets, and the significantly smaller market capitalizations of emerging market issuers.

Multi-Manager Risk. While the Advisor monitors the overall management of the Fund, the Advisor and the Subadvisors make investment decisions independently from each other. It is possible that the Advisor's and each Subadvisor's investment styles may not always be complementary, which could affect the performance and transaction costs of the Fund.

Performance

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund’s performance over time to that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

Performance results for Class Y shares prior to 10/31/08 (the Class Y shares’ inception date) reflect the performance of Class A shares at net asset value. Actual Class Y share performance would have been higher than Class A share performance because Class Y, unlike Class A, has no Rule 12b-1 fees.

The return for each of the Fund’s other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund’s shares. Any sales charge will reduce your return.

Calendar Year Total Returns for Class A at NAV

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	6/30/09	23.55	%
Worst Quarter (of periods shown)	12/31/08	-24.02	%

The average total return table shows the Fund’s returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Average Annual Total Returns
(as of 12/31/12) (with maximum sales
charge deducted, if any)

Average Annual Total Returns Class A, B, C and Y Calvert International Equity Fund	1 Year	5 Years	10 Years
Class A	11.99%	(7.79%)	3.75%
Class A Return after taxes on distributions	11.99%	(7.75%)	3.35%
Class A Return after taxes on distributions and sale of Fund shares	8.10%	(6.26%)	3.42%
Class B	11.21%	(8.15%)	3.09%
Class C	15.56%	(7.71%)	3.35%
Class Y	18.04%	(6.55%)	4.44%
MSCI EAFE IMI (reflects no deduction for fees, expenses or taxes)	18.20%	(2.90%)	9.08%
Lipper International Multi-Cap Growth Funds Avg. (reflects no deduction for taxes)	18.03%	(3.03%)	8.72%

[1] The contingent deferred sales charge reduces over time.

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses for Class Y to 1.39% through January 31, 2014. These expense limitations do not limit the acquired fund fees and expenses paid indirectly by a shareholder. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	CALVERT WORLD VALUES FUND INC
Prospectus Date	rr_ProspectusDate	Jan. 31, 2013
Document Creation Date	dei_DocumentCreationDate	Jan. 30, 2013

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

CALVERT WORLD VALUES FUND INC

Prospectus Date

rr_ProspectusDate

Jan. 31, 2013

Class I | Calvert Capital Accumulation Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

CALVERT CAPITAL ACCUMULATION FUND
Class  (Ticker):   I (CCPIX)

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide long-term capital appreciation by investing primarily in mid-cap stocks that meet the Fund’s investment criteria, including financial, sustainability and social responsibility factors. This objective may be changed by the Fund’s Board of Directors without shareholder approval.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES OF THE FUND

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a
% of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

January 31, 2014

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (“turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the “Example”, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 63% of its portfolio’s average value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

63.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $1,000,000 in the Fund for the time periods indicated;
• your investment has a 5% return each year;
• the Fund’s operating expenses remain the same; and
• any Calvert expense limitation is in effect for the period indicated in the fee table above.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests primarily in the common stocks of mid-size U.S. companies. The Fund currently defines mid-cap companies as those whose market capitalization falls within the range of the Russell Midcap Growth Index. As of December 31, 2012, the market capitalization of the Russell Midcap Growth Index companies ranged from $337 million to $21.2 billion with a weighted median level of $8.8 billion and a weighted average level of $9.3 billion. The Russell Midcap Growth Index is reconstituted annually. The Fund normally seeks to have a weighted average market capitalization between $2 billion and $12 billion.

Stocks chosen for the Fund combine growth and value characteristics or offer the opportunity to buy growth at a reasonable price. The Fund may also invest up to 25% of its net assets in foreign securities.

The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in a particular issuer than a “diversified” fund.

The Subadvisor favors companies which have an above market average prospective growth rate, but sell at below market average valuations. The Subadvisor evaluates each stock in terms of its growth potential, the return for risk free investments, and the risk and reward potential for the company to determine a reasonable price for the stock.

Sustainable and Socially Responsible Investing. The Fund seeks to invest in companies and other enterprises that demonstrate positive environmental, social and governance performance as they address corporate responsibility and sustainability challenges. Calvert believes that there are long-term benefits in an investment philosophy that attaches material weight to the environment, workplace relations, human rights, Indigenous Peoples’ rights, community relations, product safety and impact, and corporate governance and business ethics. Calvert also believes that managing risks and opportunities related to these issues can contribute positively to company performance as well as to investment performance over time. The Fund has sustainable and socially responsible investment criteria that reflect specific types of companies in which the Fund seeks to invest and seeks to avoid investing.

Investments are first selected for financial soundness and then evaluated according to the Fund’s sustainable and socially responsible investment criteria. Investments must be consistent with the Fund’s current investment criteria, including financial, sustainability and social responsibility factors, the application of which is in the economic interest of the Fund and its shareholders.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Management Risk. Individual investments of the Fund may not perform as expected, and the Fund’s portfolio management practices may not achieve the desired result.

Stock Market Risk. The market prices of stocks held by the Fund may fall.

Common Stock Risk. Although common stocks have a history of long-term growth in value, their prices fluctuate based on changes in a company’s financial condition, on overall market and economic conditions, and on investors’ perception of a company’s well-being.

Mid-Cap Company Risk. Prices of mid-cap stocks can be more volatile than those of larger, more established companies. Mid-cap companies are more likely to have more limited product lines, fewer capital resources and less depth of management than larger companies.

Growth Company Risk. Prices of growth company securities may fall more than the overall equity markets due to changing economic, political or market conditions or disappointing growth company earnings results. Growth stocks also generally lack the dividends of some value stocks that can cushion stock prices in a falling market.

Valuation Risk. A stock judged to be undervalued by the Subadvisor may actually be appropriately priced, and it may not appreciate as anticipated.

Foreign Securities Risk. Investing in foreign securities involves additional risks relating to political, social, and economic developments abroad. Other risks result from differences between regulations that apply to U.S. and foreign issuers and markets, and the potential for foreign markets to be less liquid and more volatile than U.S. markets.

Foreign Currency Risk. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates. When the U.S. dollar strengthens relative to a foreign currency, the U.S. dollar value of an investment denominated in that currency will typically fall.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below.

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

Non-diversification Risk. Because the Fund may invest a greater percentage of its assets in a particular issuer than a diversified fund, the gains or losses on a single stock may have greater impact on the Fund than a diversified fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table show the Fund’s annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class I shares has varied from year to year. The table compares the Fund’s performance over time with that of an index and an average.

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

No shareholders held Class I shares for the period from January 18, 2002 through June 3, 2003. Performance results for Class I shares for this period reflect the performance of Class A shares at net asset value. Actual Class I share performance would have been higher than Class A share performance because Class I, unlike Class A, has no Rule 12b-1 fees.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart shows how the performance of the Class I shares has varied from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.calvert.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter	Total
	Ended	Return
Best Quarter (of periods shown)	12/31/10	17.19	%
Worst Quarter (of periods shown)	12/31/08	-25.02	%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(as of 12/31/12)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares.

Class I | Calvert Capital Accumulation Fund | Class I

Risk/Return:

rr_RiskReturnAbstract

Redemption fee (as a % of amount redeemed or exchanged within 7 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.75%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.13%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.88%

Less fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.02%)

^[1]

Net expenses

rr_NetExpensesOverAssets

0.86%

1 Year

rr_ExpenseExampleYear01

8,778

3 Years

rr_ExpenseExampleYear03

27,870

5 Years

rr_ExpenseExampleYear05

48,567

10 Years

rr_ExpenseExampleYear10

108,248

2003

rr_AnnualReturn2003

31.26%

2004

rr_AnnualReturn2004

9.40%

2005

rr_AnnualReturn2005

0.54%

2006

rr_AnnualReturn2006

6.98%

2007

rr_AnnualReturn2007

10.42%

2008

rr_AnnualReturn2008

(36.37%)

2009

rr_AnnualReturn2009

31.71%

2010

rr_AnnualReturn2010

31.14%

2011

rr_AnnualReturn2011

2.89%

2012

rr_AnnualReturn2012

16.60%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter (of periods shown)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

17.19%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter (of periods shown)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(25.02%)

1 Year

rr_AverageAnnualReturnYear01

16.60%

5 Years

rr_AverageAnnualReturnYear05

5.69%

10 Years

rr_AverageAnnualReturnYear10

8.44%

Class I | Calvert Capital Accumulation Fund | Return after taxes on distributions | Class I

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.61%

5 Years

rr_AverageAnnualReturnYear05

5.32%

10 Years

rr_AverageAnnualReturnYear10

8.23%

Class I | Calvert Capital Accumulation Fund | Return after taxes on distributions and sale of Fund shares | Class I

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

12.10%

5 Years

rr_AverageAnnualReturnYear05

4.90%

10 Years

rr_AverageAnnualReturnYear10

7.49%

Class I | Calvert Capital Accumulation Fund | Russell Midcap Growth Index (reflects no deduction for fees,expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.81%

5 Years

rr_AverageAnnualReturnYear05

3.23%

10 Years

rr_AverageAnnualReturnYear10

10.32%

Class I | Calvert Capital Accumulation Fund | Lipper Mid-Cap Core Funds Avg. (reflects no deduction for taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.59%

5 Years

rr_AverageAnnualReturnYear05

2.23%

10 Years

rr_AverageAnnualReturnYear10

8.89%

[1] The investment advisor has agreed to contractually limit direct net annual fund operating expenses to 0.86% through January 31, 2014. Only the Board of Directors of the Fund may terminate the Fund's expense limitation before the contractual period expires.