Instantly convert acres (ac) to square feet (sq ft). Bidirectional, accurate, and free.
To convert acres to square feet, use the formula square feet = acres × 43,560. For example, 2 acres equals 87,120 square feet. Type any number into the calculator above and the result appears instantly — you can also type into the square feet box to convert the other way.
| Acres | Square feet |
|---|---|
| 1 ac | 43,560 sq ft |
| 5 ac | 217,800 sq ft |
| 10 ac | 435,600 sq ft |
| 25 ac | 1,089,000 sq ft |
| 50 ac | 2,178,000 sq ft |
| 100 ac | 4,356,000 sq ft |
| 250 ac | 10,890,000 sq ft |
| 500 ac | 21,780,000 sq ft |
There are 43,560 square feet in one acre. To convert any value, apply the formula square feet = acres × 43,560.
The formula is square feet = acres × 43,560. Enter a value above and the result updates instantly in both directions.
Yes. It uses the exact internationally-defined conversion factor, so results match official standards to several decimal places.
Yes — the converter is bidirectional. Type in either box and the other updates automatically using the inverse formula.