Square Kilometers to Acres Converter
1 square kilometer ≈ 247.105381 acres
1 square kilometer equals 247.105 acres
How to convert square kilometers to acres
Area factors are squared length factors: 1 ft² = (0.3048 m)². The acre here uses international feet; historic US survey acres differ slightly.
ac = km² × 247.1053815One square kilometer is 247.1053815 acres, so a single multiplication converts any value.
2,471.05 ac ≈ 10 × 247.1053815Square kilometers to acres conversion table
Common values in square kilometers, converted to acres.
| Square kilometers (km²) | Acres (ac) |
|---|---|
| 1 | 247.10538 |
| 2 | 494.21076 |
| 3 | 741.31614 |
| 4 | 988.42153 |
| 5 | 1,235.5269 |
| 10 | 2,471.0538 |
| 20 | 4,942.1076 |
| 25 | 6,177.6345 |
| 50 | 12,355.269 |
| 100 | 24,710.538 |
| 250 | 61,776.345 |
| 500 | 123,552.69 |
| 1,000 | 247,105.38 |
About these units
square kilometerkm²
One million square metres. Used for land area and geographic regions.
acreac
Exactly 4,840 square yards, or 43,560 square feet. The customary land unit.
Reference: Derived from the international yard (1959).
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.