Acre Conversions

1 Acre =
6,272,640 Square Inches
(exact result)
An acre is a unit of area equal to 1/640th of a square mile. It is about the size of an American football field.
A square inch is a unit of area. It is the size of a square that is one inch on a side. It is 1/144th of a square foot, or exactly 6.4516 square centimeters.