Convert acres to hectares for land measurement and agriculture.
Convert acres to hectares using the official US customary standard conversion factor of 1 acre = 0.40468564224 hectares.
Convert acres to hectares for land measurement and agriculture.
Convert acres to hectares using the official US customary standard conversion factor of 1 acre = 0.40468564224 hectares.
High precision critical for land transactions and agricultural planning. Approximate values (2-3 decimals) acceptable for general reference and casual discussions.
Common mistake: Confusing acres with hectares. Many Americans think 1 acre is close to 1 hectare, but 1 hectare is actually about 2.47 acres. Also, mistakenly using 0.4 ha per acre instead of the exact 0.4047 ha.
| Item | Acres | Hectares |
|---|---|---|
| Football field | 1.32 | 0.53 |
| Small farm | 40 | 16.19 |
| Golf course | 150 | 60.70 |
| National park | 10000 | 4046.86 |
| Central Park | 843 | 341.16 |
1 acre equals approximately 0.4047 hectares.
An acre is 43,560 square feet, roughly the size of a football field.
The official US customary standard defines 1 acre as exactly 0.40468564224 hectares.
1 hectare equals approximately 2.471 acres.
Acre is a traditional unit for land measurement in the US, used in real estate, agriculture, and land surveys.
100 acres equals approximately 40.47 hectares.
Last Updated: 2026 · Reviewed by the UnitFig editorial team