Convert acre (ac) to square kilometre (km²) instantly
| Acres (ac) | Square Kilometres (km²) |
|---|---|
| 0.001 ac | 4.0469e-06 km² |
| 0.01 ac | 4.04686e-05 km² |
| 0.1 ac | 0.000404686 km² |
| 0.5 ac | 0.00202343 km² |
| 1 ac | 0.00404686 km² |
| 2 ac | 0.00809372 km² |
| 5 ac | 0.0202343 km² |
| 10 ac | 0.0404686 km² |
| 20 ac | 0.0809372 km² |
| 50 ac | 0.202343 km² |
| 100 ac | 0.404686 km² |
| 200 ac | 0.809372 km² |
| 500 ac | 2.02343 km² |
| 1000 ac | 4.04686 km² |
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: km² = ac × 0.00404686