Square mile
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For other uses, see Square mile (disambiguation).
The square mile (sq mi) is an imperial and US unit of measure for an area equal to the area of a square of one statute mile. It should not be confused with miles square, which refers to the number of miles on each side squared. For instance, 20 miles square (20×20 miles) is equal to 400 square miles.
1 square mile | = 640 acres |
= 27,878,400 square feet | |
= 2.589988110336 square kilometers (exactly) | |
≈ 260 hectares |
[edit] Conversions
1 square mile is equivalent to:
- 4,014,489,600 square inches
- 27,878,400 square feet
- 3,097,600 square yards
- 640 acres
- 2560 roods
- 25,899,881,103.36 square centimeters
- 2,589,988.110336 square meters
- 2.589988110336 square kilometers
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In the Public Land Survey System of the U.S. and the Dominion Land Survey of Canada, the size of a standard section of land is one square mile, but always with the marginally larger survey definition.