How many acres in a square mile?
There are 640 acres in a square mile. To convert square miles to acres, multiply the square mile value by 640.
For example, to find out how many acres in a square mile and a half, multiply 1.5 by 640, that makes 960 acres in a square mile and a half.
square miles to acres formula
ac = mi² * 640
1 Square Mile = 640 Acres
What is a Square Mile?
Square mile is an imperial and United States Customary area unit. 1 mi2 = 640 acres. The symbol is "mi²".
You may also use area conversion to convert all area units.