Acres to Square feet Converter
Convert acres to square feet instantly. 1 ac = 43,560 ft². Free two-way converter with the formula and a quick reference table.
How to convert acres to square feet
square feet = acres × 43,560
One acre equals 43,560 square feet, so to convert acres to square feet you multiply by 43,560. Going the other way, one square foot is 2.2957e-5 acres. Both units measure area, so the conversion is an exact ratio that never changes.
10 acres = 435,600 square feet. Multiply your acre figure by the factor above (or just type it into the box) to convert any amount.
acres to square feet table
| acres (ac) | square feet (ft²) |
|---|---|
| 1 | 43,560 |
| 2 | 87,120 |
| 3 | 130,680 |
| 5 | 217,800 |
| 10 | 435,600 |
| 20 | 871,200 |
| 25 | 1,089,000 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
| 250 | 10,890,000 |
| 500 | 21,780,000 |
| 1,000 | 43,560,000 |
Frequently asked questions
How many square feet are in a acre?
One acre equals 43,560 square feet. So to convert, multiply the number of acres by 43,560.
How do I convert acres to square feet?
Multiply by 43,560, or simply enter the value in the converter above — it does the math instantly and works both ways.
Is this conversion exact?
Yes — both units measure the same quantity, so the ratio is fixed and this uses the standard internationally-agreed factor.