<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:42f5ebd3-5527-490c-9bd2-bf46aedc5c4b,g:6fddb5fe-f04a-466c-a483-cf500d122f72-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" 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">
  <link:roleRef roleURI="http://www.oildri.com/role/CoverStatement" xlink:type="simple" xlink:href="odc-20210310.xsd#CoverStatement"/>
  <link:calculationLink xlink:role="http://www.oildri.com/role/CoverStatement" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.oildri.com/role/StatementofFinancialPosition" xlink:type="simple" xlink:href="odc-20210310.xsd#StatementofFinancialPosition"/>
  <link:calculationLink xlink:role="http://www.oildri.com/role/StatementofFinancialPosition" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.oildri.com/role/StatementofIncome" xlink:type="simple" xlink:href="odc-20210310.xsd#StatementofIncome"/>
  <link:calculationLink xlink:role="http://www.oildri.com/role/StatementofIncome" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.oildri.com/role/StatementofCashFlows" xlink:type="simple" xlink:href="odc-20210310.xsd#StatementofCashFlows"/>
  <link:calculationLink xlink:role="http://www.oildri.com/role/StatementofCashFlows" xlink:type="extended"/>
</link:linkbase>
