Calculators » Conversion » Area » Acre to sq mi/ Sq mi to acre

Convert between Acre and Square mile

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert area units from acres to square miles and square miles to acres.

Area in acre (acre)

Area in square mile (sq mi)

Enter the value you want to convert, and leave the target field blank.

Android: Use this area converter offline with our all-in-one calculator app.

Conversion formula

1 square mile (mi2) = 640 acres (acre)
or,
1 acre (acre) = 0.0015625 square miles (mi2)

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