A square mile is a unit of area that is defined as the area of a square whose sides each measure one mile in length. To find out how many acres are in a square mile, it’s useful to know the following conversions:
- 1 mile = 5,280 feet
- 1 acre = 43,560 square feet
Now, to calculate the number of acres in a square mile:
- First, calculate the total area of a square mile in square feet:
- 1 mile x 1 mile = (5,280 feet) x (5,280 feet) = 27,878,400 square feet
- Next, divide the total area in square feet by the area of one acre:
- 27,878,400 square feet ÷ 43,560 square feet/acre = 640 acres
Therefore, there are 640 acres in one square mile. This is a straightforward conversion that helps in understanding land measurements, especially in real estate, agriculture, and zoning practices.