The square mile

The square mile (mi² or sq mi) is a unit of area equivalent to a square whose sides measure one statute mile. One square mile is equal to 2.589988110336 square kilometers, and also to:

4,014,489,600 square inches
27,878,400 square feet
3,097,600 square yards
102 400 square rods
2560 rods
640 acres
4 homesteads
0.111111111111111 square leagues

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