Square mile

Square mile
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Square_mile".

This article is about the unit of measure. For other meanings, see Square mile (disambiguation).

For other uses, see Square.

The square mile is an imperial and US unit of area equal 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.

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1 square mile	=640 acres
	=27,878,400 square feet
	=2.589988110336 square kilometers (exactly)
	≈260 hectares

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

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.

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