mi² to ac
39 unitsResult6.399974e+2
639.99744ac
1 mi² × 639.99744 = 639.99744 ac
Convert Square mile to Acre (US survey) (mi² to ac)
1 square mile = 639.99744 acre (US survey). Convert square miles to acre (US survey) instantly, with the exact factor, the formula and a reference table of common values.
Formula
acre (US survey) = square miles × 639.99744
mi² to ac conversion table
| mi² | ac |
|---|---|
| 1 mi² | 639.99744 ac |
| 2 mi² | 1279.99488 ac |
| 3 mi² | 1919.99232 ac |
| 5 mi² | 3199.9872 ac |
| 10 mi² | 6399.9744 ac |
| 20 mi² | 12799.9488 ac |
| 50 mi² | 31999.872 ac |
| 100 mi² | 63999.744 ac |
| 250 mi² | 159999.36 ac |
| 500 mi² | 319998.72 ac |
| 1000 mi² | 639997.44 ac |
What is a square mile?
A square mile is a square one mile on each side, about 2.59 square kilometers. It is the everyday unit for city and county areas in the United States and UK.
Manhattan covers roughly 59 square kilometers, or about 23 square miles. In American surveying, a square mile of land is called a section.
In writing, the square mile is usually shortened to "mi²". One square mile is 2589988.11 square meters, and that ratio is what every number on this page is built from.