Square Kilometers to Acres converter
Convert square kilometers (km²) to acres (ac) — results update instantly as you type.
Square Kilometers to Acres
To
1 km² = 247.10538147 ac
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How to convert Square Kilometers to Acres
Area measurements describe surfaces — from apartment floor plans in square meters or square feet to farmland in acres and hectares, and entire countries in square kilometers or square miles.
Every area unit is a length unit squared, which is why conversion factors are large: one acre equals exactly 4,046.8564224 square meters and one hectare is exactly 10,000 square meters.
Formula
km² × 247.1053814672 = ac
Multiply your square kilometers value by 247.1053814672 to get acres. For the reverse, divide by the same factor.
Square Kilometers to Acres conversion table
| Square Kilometers | Acres |
|---|---|
| 1 km² | 247.105381 ac |
| 2 km² | 494.210763 ac |
| 5 km² | 1,235.526907 ac |
| 10 km² | 2,471.053815 ac |
| 25 km² | 6,177.634537 ac |
| 100 km² | 24,710.538147 ac |
Common use cases
- Real estate listings between square feet and square meters
- Farmland and plots between acres and hectares
- Country and city size comparisons
- Construction material coverage estimates
Frequently asked questions
One acre equals 43,560 square feet, or about 4,047 square meters — roughly 90% of an American football field.