Convert square foot (ft²) to acre (ac) instantly
| Square Feet (ft²) | Acres (ac) |
|---|---|
| 0.001 ft² | 2.2957e-08 ac |
| 0.01 ft² | 2.2957e-07 ac |
| 0.1 ft² | 2.2957e-06 ac |
| 0.5 ft² | 1.147840548e-05 ac |
| 1 ft² | 2.295681096e-05 ac |
| 2 ft² | 4.591362192e-05 ac |
| 5 ft² | 0.0001147840548 ac |
| 10 ft² | 0.0002295681096 ac |
| 20 ft² | 0.0004591362192 ac |
| 50 ft² | 0.001147840548 ac |
| 100 ft² | 0.002295681096 ac |
| 200 ft² | 0.004591362192 ac |
| 500 ft² | 0.01147840548 ac |
| 1000 ft² | 0.02295681096 ac |
Area measures two-dimensional space. The hectare (10,000 m²) is used for land. One acre = 4046.86 m². One square mile = 640 acres = 2.59 km².
Formula: ac = ft² × 2.295681096e-05