<?xml version="1.0" encoding="UTF-8"?>
<!-- XBRL document created with DocuBuilder 4.7 by Data Communique, Inc. -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="http://columbia/role/OperatingExpensesDataAAAA" xlink:type="simple" xlink:href="cik0000773757-2012110802.xsd#OperatingExpensesDataAAAA"/>
  <link:roleRef roleURI="http://columbia/role/OperatingExpensesDataBBBB" xlink:type="simple" xlink:href="cik0000773757-2012110802.xsd#OperatingExpensesDataBBBB"/>
  <link:calculationLink xlink:type="extended" xlink:role="http://columbia/role/OperatingExpensesDataAAAA">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets" xlink:label="NetExpensesOverAssets"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets" xlink:label="ExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetExpensesOverAssets" xlink:to="ExpensesOverAssets" use="optional" priority="1" order="1.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets" xlink:label="ManagementFeesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="ManagementFeesOverAssets" use="optional" priority="1" order="1.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets" xlink:label="DistributionAndService12b1FeesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="DistributionAndService12b1FeesOverAssets" use="optional" priority="1" order="2.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets" xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="DistributionOrSimilarNon12b1FeesOverAssets" use="optional" priority="1" order="3.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets" xlink:label="OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="OtherExpensesOverAssets" use="optional" priority="1" order="4.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets" xlink:label="Component1OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component1OtherExpensesOverAssets" use="optional" priority="1" order="1.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets" xlink:label="Component2OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component2OtherExpensesOverAssets" use="optional" priority="1" order="2.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets" xlink:label="Component3OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component3OtherExpensesOverAssets" use="optional" priority="1" order="3.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets" xlink:label="AcquiredFundFeesAndExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="1" order="5.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets" xlink:label="FeeWaiverOrReimbursementOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetExpensesOverAssets" xlink:to="FeeWaiverOrReimbursementOverAssets" use="optional" priority="1" order="2.0" weight="1"/>
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://columbia/role/OperatingExpensesDataBBBB">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets" xlink:label="NetExpensesOverAssets"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets" xlink:label="ExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetExpensesOverAssets" xlink:to="ExpensesOverAssets" use="optional" priority="1" order="1.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets" xlink:label="ManagementFeesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="ManagementFeesOverAssets" use="optional" priority="1" order="1.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets" xlink:label="DistributionAndService12b1FeesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="DistributionAndService12b1FeesOverAssets" use="optional" priority="1" order="2.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets" xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="DistributionOrSimilarNon12b1FeesOverAssets" use="optional" priority="1" order="3.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets" xlink:label="OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="OtherExpensesOverAssets" use="optional" priority="1" order="4.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets" xlink:label="Component1OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component1OtherExpensesOverAssets" use="optional" priority="1" order="1.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets" xlink:label="Component2OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component2OtherExpensesOverAssets" use="optional" priority="1" order="2.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets" xlink:label="Component3OtherExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherExpensesOverAssets" xlink:to="Component3OtherExpensesOverAssets" use="optional" priority="1" order="3.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets" xlink:label="AcquiredFundFeesAndExpensesOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ExpensesOverAssets" xlink:to="AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="1" order="5.0" weight="1"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets" xlink:label="FeeWaiverOrReimbursementOverAssets"/>
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetExpensesOverAssets" xlink:to="FeeWaiverOrReimbursementOverAssets" use="optional" priority="1" order="2.0" weight="1"/>
  </link:calculationLink>
</link:linkbase>
