Hectares to Acres formula
1 hectare = 2.471053815 acres, and 1 acre = 0.4046856422 hectares. 10,000 m², about 2.471 acres.
Hectares to Acres chart
| Hectares (ha) | Acres (ac) |
|---|---|
| 0.1 | 0.2471 |
| 0.25 | 0.6178 |
| 0.5 | 1.2355 |
| 1 | 2.4711 |
| 1.5 | 3.7066 |
| 2 | 4.9421 |
| 3 | 7.4132 |
| 4 | 9.8842 |
| 5 | 12.3553 |
| 10 | 24.7105 |
| 20 | 49.4211 |
| 25 | 61.7763 |
| 50 | 123.5527 |
| 100 | 247.1054 |
| 200 | 494.2108 |
| 500 | 1,235.5269 |
| 1,000 | 2,471.0538 |
Values are rounded to 4 decimal places. The converter above shows more precision.
Worked examples
A 2-hectare vineyard
2 ha ÷ 0.4046856422 = 4.9421 ac
2 hectares = 4.9421 acres. Almost 5 acres (4.94), a typical size for a small family wine estate.
A 100-hectare farm
100 ha ÷ 0.4046856422 = 247.1054 ac
100 hectares = 247.1054 acres. About 247 acres, or exactly one square kilometre of land.
Converting hectares to acres in real life
Hectares are the standard unit for land in most countries and in agriculture statistics, forestry, conservation areas and planning documents. If you are reading about a farm in France, a vineyard in Australia or a forest reserve, and you think in acres, convert the figure to get a feel for its size.
The quick rule is "two and a half": 4 ha is about 10 acres (9.88 exactly). A hectare is a 100 m × 100 m square, about 1.4 times the size of a full-size football pitch. For smaller areas such as house plots, square metres or square feet are easier to read: see sq m to sq ft.