Convert Square Mile to Acre
Other Square Mile Conversions
- Square Mile to Square Kilometer
- Square Mile to Square Meter
- Square Mile to Square Yard
- Square Mile to Square Foot
- Square Mile to Square Inch
- Square Mile to Hectare
- See also: Acre to Square Mile
Conversion Table
| 0.1 mi² | 64 ac |
| 0.5 mi² | 320 ac |
| 1 mi² | 640 ac |
| 5 mi² | 3,200 ac |
| 10 mi² | 6,400 ac |
| 50 mi² | 32,000 ac |
| 100 mi² | 64,000 ac |
| 500 mi² | 320,000 ac |
| 1,000 mi² | 640,000 ac |
| Units in Square Mile | Units in Acre |
|---|---|
| 1 Square Kilometer = 0.3861021585 Square Mile | 1 Square Kilometer = 247.1053815 Acre |
| 1 Square Meter = 0.000000386102 Square Mile | 1 Square Meter = 0.000247105382 Acre |
| 1 Square Mile = 1 Square Mile | 1 Square Mile = 640 Acre |
| 1 Square Yard = 0.000000322831 Square Mile | 1 Square Yard = 0.00020661157 Acre |
| 1 Square Foot = 0.00000003587 Square Mile | 1 Square Foot = 0.000022956841 Acre |
| 1 Square Inch = 2.4910e-10 Square Mile | 1 Square Inch = 0.000000159423 Acre |
| 1 Hectare = 0.003861021585 Square Mile | 1 Hectare = 2.471053815 Acre |
| 1 Acre = 0.0015625 Square Mile | 1 Acre = 1 Acre |
On this page you can convert square mile (mi²) to acre (ac) quickly and easily. One square mile equals 640 acres, and one acre equals 0.0015625 square miles. Type any value in the converter above and the result appears right away.
The square mile is a large area unit used in the United States and the United Kingdom. It equals about 2.59 square kilometers. Its symbol is mi².
The acre is an area unit used in the United States and the United Kingdom for land. One acre equals about 4,047 square meters. Its symbol is ac.
To convert from square mile to acre, multiply the number of square miles by 640. For example: 5 mi² × 640 = 3,200 ac, and 20 mi² × 640 = 12,800 ac. To go the other way, from acre to square mile, divide by 640 instead.
This area converter is free, works on your phone and computer, and even works offline after your first visit. The tables above give you ready answers for the most common values, and you will also find links to more square mile conversions.