Acres to Hectares
1 acre ≈ 0.4047 ha. Edit either value to convert instantly.
Conversion formula
ha = acre × (4,046.8564224) × (0.0001)1 acre ≈ 0.404686 ha
acre (acre)
An international acre is exactly 43,560 square international feet, or 4,046.8564224 m²; old US survey acres differ slightly.
Source: NIST — Revised Unit Conversion Factors for the international foot
hectare (ha)
One hectare equals exactly 10,000 m².
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
Conversion table
| acre | ha |
|---|---|
| ≈ 0.404686 | |
| ≈ 0.809371 | |
| ≈ 2.02343 | |
| ≈ 4.04686 | |
| ≈ 6.07028 | |
| ≈ 8.09371 | |
| ≈ 10.1171 | |
| ≈ 12.1406 | |
| ≈ 16.1874 | |
| ≈ 18.2109 |
| acre | ha |
|---|---|
| ≈ 20.2343 | |
| ≈ 24.2811 | |
| ≈ 28.328 | |
| ≈ 32.3749 | |
| ≈ 36.4217 | |
| ≈ 40.4686 | |
| ≈ 60.7028 | |
| ≈ 64.7497 | |
| ≈ 68.7966 | |
| ≈ 72.8434 |
Frequently asked questions
How many hectares are in 1 acre?
1 acre ≈ 0.4047 ha. ha = acre × (4,046.8564224) × (0.0001)
How do I convert acre to ha?
ha = acre × (4,046.8564224) × (0.0001)
Is 1 acre bigger than 1 hectare?
1 acre ≈ 0.4047 ha.
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