Convert square feet (ft²) to acres (ac) instantly — type a value below.
To convert square feet to acres, use this formula:
ac = ft² ÷ 43,560 (the same as multiplying by 2.295684114 × 10^-5)
| Square feet (ft²) | Acres (ac) |
|---|---|
| 0.1 ft² | 2.29568 × 10^-6 ac |
| 0.25 ft² | 5.73921 × 10^-6 ac |
| 0.5 ft² | 1.14784 × 10^-5 ac |
| 1 ft² | 2.29568 × 10^-5 ac |
| 2 ft² | 4.59137 × 10^-5 ac |
| 3 ft² | 6.88705 × 10^-5 ac |
| 4 ft² | 9.18274 × 10^-5 ac |
| 5 ft² | 0.000114784 ac |
| 6 ft² | 0.000137741 ac |
| 7 ft² | 0.000160698 ac |
| 8 ft² | 0.000183655 ac |
| 9 ft² | 0.000206612 ac |
| 10 ft² | 0.000229568 ac |
| 12 ft² | 0.000275482 ac |
| 15 ft² | 0.000344353 ac |
| 20 ft² | 0.000459137 ac |
| 25 ft² | 0.000573921 ac |
| 30 ft² | 0.000688705 ac |
| 40 ft² | 0.000918274 ac |
| 50 ft² | 0.00114784 ac |
| 60 ft² | 0.00137741 ac |
| 70 ft² | 0.00160698 ac |
| 75 ft² | 0.00172176 ac |
| 80 ft² | 0.00183655 ac |
| 90 ft² | 0.00206612 ac |
| 100 ft² | 0.00229568 ac |
| 150 ft² | 0.00344353 ac |
| 200 ft² | 0.00459137 ac |
| 250 ft² | 0.00573921 ac |
| 500 ft² | 0.0114784 ac |
| 1,000 ft² | 0.0229568 ac |
A square foot is the area of a square 1 foot on each side, exactly 0.09290304 m². It is the standard unit for home and office floor area in the US.
An acre is 43,560 square feet, exactly 4,046.8564224 m². It is used for land and farm area in the US and UK.
Need other units? Use the full area converter.