<?xml version="1.0" encoding="utf-8"?>
<!--DataTracks on 25-September-2020 [03:03:53] {AM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="amft-20200531.xsd#AnnualFundOperatingExpensesAmanaIncomeFund" roleURI="http://www.amanafunds.com/role/AnnualFundOperatingExpensesAmanaIncomeFund" />
<calculationLink xlink:type="extended" xlink:role="http://www.amanafunds.com/role/AnnualFundOperatingExpensesAmanaIncomeFund">
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rr/2018/rr-2018-01-31.xsd#rr_ExpensesOverAssets" xlink:label="loc_rr_ExpensesOverAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rr/2018/rr-2018-01-31.xsd#rr_ManagementFeesOverAssets" xlink:label="loc_rr_ManagementFeesOverAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_rr_ExpensesOverAssets" xlink:to="loc_rr_ManagementFeesOverAssets" use="optional" order="1" weight="1" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rr/2018/rr-2018-01-31.xsd#rr_DistributionAndService12b1FeesOverAssets" xlink:label="loc_rr_DistributionAndService12b1FeesOverAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_rr_ExpensesOverAssets" xlink:to="loc_rr_DistributionAndService12b1FeesOverAssets" use="optional" order="2" weight="1" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rr/2018/rr-2018-01-31.xsd#rr_OtherExpensesOverAssets" xlink:label="loc_rr_OtherExpensesOverAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_rr_ExpensesOverAssets" xlink:to="loc_rr_OtherExpensesOverAssets" use="optional" order="3" weight="1" />
</calculationLink>
</linkbase>
