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1 Square Mile =

4.0144896 x 10^{9} Square Inches

(exact result)

A square mile is a unit of area. It is the size of a square that is one mile on a side. It is equal to 640 acres or approximately 2.59 square kilometers.

A square inch is a unit of area. It is the size of a square that is one inch on a side. It is 1/144^{th} of a square foot, or exactly 6.4516 square centimeters.