Acres to hectares
1 acre = 0.405 hectares
For any other value: ha = ac × 0.4046856422
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0.405 ha
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Acres to hectares chart
The values people look up most.
| acres | hectares |
|---|---|
| 1 ac | 0.405 ha |
| 10 ac | 4.047 ha |
| 5 ac | 2.023 ha |
| 100 ac | 40.469 ha |
| 2 ac | 0.809 ha |
| 20 ac | 8.094 ha |
| 40 ac | 16.187 ha |
| 3 ac | 1.214 ha |
| 50 ac | 20.234 ha |
| 6 ac | 2.428 ha |
| 200 ac | 80.937 ha |
| 30 ac | 12.141 ha |
| 12 ac | 4.856 ha |
| 1000 ac | 404.686 ha |
| 2.5 ac | 1.012 ha |
| 300 ac | 121.406 ha |
| 4 ac | 1.619 ha |
| 7 ac | 2.833 ha |
| 60 ac | 24.281 ha |
| 8 ac | 3.237 ha |
| 15 ac | 6.07 ha |
| 160 ac | 64.75 ha |
| 500 ac | 202.343 ha |
| 400 ac | 161.874 ha |
| 80 ac | 32.375 ha |
| 25 ac | 10.117 ha |
| 2000 ac | 809.371 ha |
| 120 ac | 48.562 ha |
| 600 ac | 242.811 ha |
| 11 ac | 4.452 ha |
Formula
ha = ac × 0.4046856422
A hectare is 2.47 acres. Land in Europe is measured in hectares and in the US and UK in acres.
Where this number comes from
This factor is exact, not rounded. A hectare is exactly 10,000 m²; the acre follows from the foot.
Source: NIST Guide to the SI, Appendix B: Conversion Factors, NIST (National Institute of Standards and Technology, USA).
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