Acres to Square Miles Conversion

Enter Acre
Enter Square Mile
Calculate Area

How to convert acres to square miles?

1 Acre is equal to 0.0015625 square mile. To convert acres to square miles, multiply the acre value by 0.0015625 or divide by 640.

For example, to calculate how many square miles is 100 acres, multiply 100 by 0.0015625, that makes 0.15625 sq miles is 100 acres.

acres to square miles formula

square mile = acre * 0.0015625

square mile = acre / 640

1 Acre = 0.0015625 Square Mile

What is an Acre?

Acre is an imperial and United States Customary area unit. 1 acre = 0.0015625 miles squared. The symbol is "ac".

Please visit all area units conversion to convert all area units.

Create Conversion Table
Click "Create Table". Enter a "Start" value (5, 100 etc). Select an "Increment" value (0.01, 5 etc) and select "Accuracy" to round the result.