How to convert square kilometers to acres
Formula: ac = km² × 247.105
Worked example: 10 km² → 10 × 247.105 = 2,471.05 ac
Square kilometers to acres conversion chart
| Square kilometers (km²) | Acres (ac) |
|---|---|
| 1 km² | 247.105 ac |
| 2 km² | 494.211 ac |
| 3 km² | 741.316 ac |
| 4 km² | 988.422 ac |
| 5 km² | 1,235.53 ac |
| 6 km² | 1,482.63 ac |
| 7 km² | 1,729.74 ac |
| 8 km² | 1,976.84 ac |
| 9 km² | 2,223.95 ac |
| 10 km² | 2,471.05 ac |
| 12 km² | 2,965.26 ac |
| 15 km² | 3,706.58 ac |
| 20 km² | 4,942.11 ac |
| 25 km² | 6,177.63 ac |
| 30 km² | 7,413.16 ac |
| 40 km² | 9,884.22 ac |
| 50 km² | 12,355.3 ac |
| 75 km² | 18,532.9 ac |
| 100 km² | 24,710.5 ac |
| 250 km² | 61,776.3 ac |
| 500 km² | 123,553 ac |
| 1,000 km² | 247,105 ac |
What is a square kilometer?
The square kilometer equals one million square meters, or 100 hectares. It measures cities, lakes, parks and countries; Manhattan covers about 59 km² of land. One square kilometer is about 0.386 square mile.
What is an acre?
The acre equals 43,560 square feet, about 4,047 m² or 0.405 hectare. It is the US and UK unit for land, lots and farms. An American football field, end zones included, covers about 1.32 acres.