Convert square miles to square feet
Enter a square miles value below and convert to square feet
mi²
1 square mile =
27878400 square feet
* exact result
Select how many decimal places the result will be rounded to:
How to convert square miles to square feet
To convert square miles to square feet, multiply a square miles value by 27878400.
Formula ft² = mi² × 27878400
Example: Convert 0.001 square miles to square feet Calculations: 0.001 mi² × 27878400 = 27878.4 ft²
Square mile (mi²)
The square mile is the imperial system's unit of area, defined as the area of a square with sides of 1 mile. It is equal to about 2.59 square kilometers.
Square foot (ft²)
The square foot is the imperial system's unit of area, defined as the area of a square with sides of 1 foot. It is equal to about 0.0929 square meters.