Acres to Hectares Converter
Convert acres to hectares and other area units instantly. Acres are the standard land measurement in the United States and United Kingdom, while hectares are used in most other countries and in scientific contexts.
An acre is defined as exactly 43,560 square feet, and a hectare is exactly 10,000 square meters. The conversion factor between them is derived from the international foot definition (1 ft = 0.3048 m exactly).
Exact conversion factors:
- 1 acre = 0.40468564224 hectares
- 1 acre = 4,046.8564224 square meters
- 1 acre = 43,560 square feet (by definition)
- 640 acres = 1 square mile (by definition)
- 1 hectare = 2.47105381467 acres
Quick Reference Table:
| Acres | Hectares | Square Meters | Square Feet |
|---|---|---|---|
| 0.25 | 0.1012 | 1,011.71 | 10,890 |
| 0.5 | 0.2023 | 2,023.43 | 21,780 |
| 1 | 0.4047 | 4,046.86 | 43,560 |
| 5 | 2.0234 | 20,234.28 | 217,800 |
| 10 | 4.0469 | 40,468.56 | 435,600 |
| 100 | 40.4686 | 404,685.64 | 4,356,000 |
| 640 | 259.00 | 2,590,000 | 27,878,400 |
One acre is roughly the size of a football field (which is 1.32 acres including end zones). A hectare is about 2.47 acres, or roughly the size of two football fields.