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.

One square mile is equal to the area of a square with sides that are 1 mile long. One square mile is roughly equal to 2.59 square kilometers. The square mile is a US customary and imperial unit of area. Square miles can be abbreviated as sq mi, and are al

One square mile is equal to the area of a square with sides that are 1 mile long. One square mile is roughly equal to 2.59 square kilometers. The square mile is a US customary and imperial unit of area. Square miles can be abbreviated as sq mi, and are al