Acres to Square Kilometers - Convert acres to square kilometers

Acres Conversion

Acre is a unit used to measure land area in the imperial and US customary systems. It equals 43,560 square feet and 4046.86 square meters. The acre is a common measurement for large areas like forests, farmland, fields, cities. The word originates from Old English æcer which means "open field". 1 acre is about 90 % of the American football field.

Square Kilometers Conversion

A square kilometer is an SI unit of area or surface area multiple of the square meter. One square kilometer is equivalent to 100 hectares, 1,000,000 square meters or 0.3861 square miles.