1 square kilometer (km²) = 247.1053815 acres (ac). To convert, multiply by 247.1053815: ac = km² × 247.1053815. For example, 5 km² = 1,235.526907 ac.
ac = km² × 247.1053815
Square kilometers to acres table
| Square kilometers (km²) | Acres (ac) |
|---|---|
| 1 | 247.1053815 |
| 2 | 494.2107629 |
| 3 | 741.3161444 |
| 4 | 988.4215259 |
| 5 | 1,235.526907 |
| 10 | 2,471.053815 |
| 20 | 4,942.107629 |
| 25 | 6,177.634537 |
| 50 | 12,355.26907 |
| 100 | 24,710.53815 |
| 250 | 61,776.34537 |
| 500 | 123,552.6907 |
| 1,000 | 247,105.3815 |
The two units
Square kilometer (km²). One million square meters, or 100 hectares.
Acre (ac). The international acre: 43,560 square feet. The older US survey acre is very slightly larger.
Convert square kilometers to other units
- Square kilometers to square meters — 1 km² = 1,000,000 m²
- Square kilometers to square centimeters — 1 km² = 10,000,000,000 cm²
- Square kilometers to hectares — 1 km² = 100 ha
- Square kilometers to square feet — 1 km² = 10,763,910.42 ft²
- Square kilometers to square inches — 1 km² = 1,550,003,100 in²
- Square kilometers to square yards — 1 km² = 1,195,990.046 yd²
- Square kilometers to square miles — 1 km² = 0.3861021585 mi²
Convert other units to acres
Questions people ask
- How many acres are in a square kilometer?
- 247.1053815.
- How do you convert square kilometers to acres?
- ac = km² × 247.1053815. It is the same as dividing by 0.0040468564.
- How do you convert acres back to square kilometers?
- km² = ac ÷ 247.1053815. See acres to square kilometers.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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