Convert square kilometers to acres quickly and accurately using this free online converter
Used for land area, room size, and real estate measurements.
💡 Square meters are standard internationally; square feet are used in the US.
ac = km² × 247.1054
Example: 1 km² × 247.1054 = 247.1054 ac
Use square meters internationally; square feet for US properties.
Common uses: real estate, land measurement, and floor plans.
How do I convert km² to ac?
Multiply the value in Square kilometers by 247.1054. For example: 10 km² = 2471.0538 ac.
When should I use Acres instead of Square kilometers?
Use square meters internationally; square feet for US properties.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Square kilometers (km²) | Acres (ac) |
|---|---|
| 1 km² | 247.1054 ac |
| 5 km² | 1235.5269 ac |
| 10 km² | 2471.0538 ac |
| 25 km² | 6177.6345 ac |
| 50 km² | 12,355.27 ac |
| 100 km² | 24,710.54 ac |
| 500 km² | 123,552.69 ac |
| 1000 km² | 247,105.38 ac |