Hectares to Acres Converter
1 hectare ≈ 2.47105381 acres
1 hectare equals 2.47105 acres
How to convert hectares 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 = ha × 2.471053815One hectare is 2.471053815 acres, so a single multiplication converts any value.
24.7105 ac ≈ 10 × 2.471053815Hectares to acres conversion table
Common values in hectares, converted to acres.
| Hectares (ha) | Acres (ac) |
|---|---|
| 1 | 2.4710538 |
| 2 | 4.9421076 |
| 3 | 7.4131614 |
| 4 | 9.8842153 |
| 5 | 12.355269 |
| 10 | 24.710538 |
| 20 | 49.421076 |
| 25 | 61.776345 |
| 50 | 123.55269 |
| 100 | 247.10538 |
| 250 | 617.76345 |
| 500 | 1,235.5269 |
| 1,000 | 2,471.0538 |
About these units
hectareha
Exactly 10,000 square metres, a square 100 m on each side. The metric land unit.
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.