The short answer
- 1 ac = 43,560 ft²
- 1 ft² ≈ 0.00002295684 ac
Worked example1 ac × 43,560 = 43,560 ft²
To convert acres to square feet, multiply the number of acres by 43,560.
Acre. The international acre is 43,560 square feet, exactly 4,046.8564224 square metres.
Square foot. A square foot is the area of a square one foot on each side, exactly 0.09290304 square metres.
| Acres (ac) | Square feet (ft²) |
|---|---|
| 0.1 | 4,356 |
| 0.25 | 10,890 |
| 0.5 | 21,780 |
| 0.75 | 32,670 |
| 1 | 43,560 |
| 1.5 | 65,340 |
| 2 | 87,120 |
| 2.5 | 108,900 |
| 3 | 130,680 |
| 4 | 174,240 |
| 5 | 217,800 |
| 10 | 435,600 |
| 20 | 871,200 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
Values are rounded to 7 significant figures.
Multiply the number of acres by 43,560. For example, 1 ac × 43,560 = 43,560 ft².
One acre is exactly 43,560 square feet.
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.