Acres to Square Miles Converter
CommonSquare meters, acres, hectares and more.
How to convert Acres to Square Miles
Multiply the acres value by 0.0015625: 1 ac = 0.0015625 mi². Going the other way, 1 mi² = 639.999 ac, so divide by 0.0015625 or use the Square Miles to Acres converter.
About these units
Acres (ac)
An acre is 43,560 square feet, about 4,047 square meters or 0.405 hectares. Historically it was the area a team of oxen could plough in a day.
Square Miles (mi²)
A square mile is 640 acres, about 2.59 square kilometers. It is used for land areas in the United States.
Acres to Square Miles conversion table
| Acres (ac) | Square Miles (mi²) |
|---|---|
| 1 ac | 0.0015625 mi² |
| 2 ac | 0.003125 mi² |
| 3 ac | 0.0046875 mi² |
| 4 ac | 0.00625001 mi² |
| 5 ac | 0.00781251 mi² |
| 10 ac | 0.015625 mi² |
| 20 ac | 0.03125 mi² |
| 25 ac | 0.0390625 mi² |
| 50 ac | 0.0781251 mi² |
| 100 ac | 0.15625 mi² |
| 500 ac | 0.781251 mi² |
| 1,000 ac | 1.5625 mi² |