Land Area Conversion
Acres to Hectares Converter
Acres are common in U.S. and other land listings, while hectares are widely used in metric systems. This tool converts between the two standard land-area units.
Free Converter
Exact mathAcre → Hectare
Enter a value—
Acres to Hectares Converter formula
1 acre = 0.4046856422 ha. Multiply the acre value by 0.4046856422 to get ha.
Acres are common in U.S. and other land listings, while hectares are widely used in metric systems. This tool converts between the two standard land-area units.
Acre to Hectare conversion table
| Acre (acre) | Hectare (ha) |
|---|---|
| 1 acre | 0.4047 ha |
| 5 acre | 2.0234 ha |
| 10 acre | 4.0469 ha |
| 25 acre | 10.1171 ha |
| 50 acre | 20.2343 ha |
| 100 acre | 40.4686 ha |
How to use this conversion
- Enter the amount in Acre.
- Confirm Hectare is selected as the target unit.
- The result updates instantly; use the swap button to reverse the conversion.
Accuracy and rounding
The underlying conversion uses the stored standard reference factor or built-in formula. Display rounding can be adjusted by the site administrator; for engineering or legal work, retain enough significant digits for your use case.
Conversions are mathematical reference conversions. Regional land units can vary by jurisdiction; use only a locally verified factor for region-dependent units such as bigha.
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