Question

How many acres are in
mi2?

Answer 1

1 mi² = 640 acres

Explanation:

1 mi = 5280 ft

1 mi² = 5280 ft × 5280 ft = 27,878,400 ft²

1 acre = 43,560 ft²

1 mi² / 1 acre = 27,878,400 ft² / 43,560 ft² = 640

Therefore, 1 mi² = 640 acres.