SEC Registration Nos.
Nos. 811-03416 and 002-76510 

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 

FORM N-1A

REGISTRATION STATEMENT UNDER THE
SECURITIES ACT OF 1933 

Post-Effective Amendment No. 96            XX

and/or

REGISTRATION STATEMENT UNDER THE
INVESTMENT ACT OF 1940 

Amendment No. 96                         XX 

The Calvert Fund

(Exact Name of Registrant as Specified in Charter) 

4550 Montgomery AvenueBethesda, 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

[   ] Immediately upon filing pursuant to paragraph (b)

[ X ] on January 30, 2012, 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.

If appropriate, check the following box:

[ X ] This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

EXPLANATORY NOTE

Parts A, B and C to The Calvert Fund (the “Registrant”) Post-Effective Amendment No. 93 to the Registration Statement under the Securities Act of 1933, as amended (the “Securities Act”), filed with the Securities and Exchange Commission on October 13, 2011 (the “Post-Effective Amendment”) (accession number 0000701039-11-000110), are incorporated herein by reference.

The Registrant is submitting this post-effective amendment pursuant to Rule 485(b) under the Securities Act solely to designate January 30, 2012, as the new effective date for the Post-Effective Amendment filed pursuant to Rule 485(a) under the Securities Act on October 13, 2011, which contains the Prospectus and the Statement of Additional Information describing Calvert Strategic Income Fund, a series of the Registrant. The Post-Effective Amendment was initially scheduled to become effective on December 30, 2011. This post-effective amendment is not intended to amend or supersede any information contained in the Post-Effective Amendment and is not intended to amend the prospectuses and statements of additional information of other series of the Registrant.

SIGNATURES 

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant 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 20th day of December 2011.

THE CALVERT FUND

By:
_____________**_____________
Barbara J. Krumsiek
President and Trustee

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 20th day of December 2011.

Signature	Title
__________**____________ Barbara J. Krumsiek	President and Trustee (Principal Executive Officer)
__________**____________ Ronald M. Wolfsheimer	Treasurer (Principal Accounting Officer)
__________**____________ Richard L. Baird, Jr.	Trustee
__________**____________ Douglas E. Feldman, M.D.	Trustee
__________**____________ John G. Guffey, Jr.	Trustee
__________**____________ M. Charito Kruvant	Trustee
__________**____________ D. Wayne Silby	Trustee
__________**____________ Anthony A. Williams	Trustee

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

Executed by Lancelot A. King, Attorney-in-fact on behalf of those indicated, pursuant to Powers of Attorney forms, incorporated by reference to Registrant's Post-Effective Amendment No.70, dated January 31, 2011, accession number 0000701039-11-000005.