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| acres (ac) | square kilometers (km²) |
|---|---|
| 0.1 ac | 0.000405 km² |
| 0.25 ac | 0.001012 km² |
| 0.5 ac | 0.002023 km² |
| 1 ac | 0.004047 km² |
| 2 ac | 0.008094 km² |
| 3 ac | 0.012141 km² |
| 5 ac | 0.020234 km² |
| 10 ac | 0.040469 km² |
| 20 ac | 0.080937 km² |
| 25 ac | 0.101171 km² |
| 50 ac | 0.202343 km² |
| 100 ac | 0.404686 km² |
| 250 ac | 1.011714 km² |
| 500 ac | 2.023428 km² |
| 1000 ac | 4.046856 km² |
| 5000 ac | 20.234282 km² |
| 10000 ac | 40.468564 km² |
Type a value in acres in the converter above — the equivalent in square kilometers is calculated instantly. 1 ac equals 0.004047 km².
Multiply the value in acres by 0.004047 to get the value in square kilometers.
There are 0.004047 square kilometers in 1 ac.