UnitConAcres to Hectares Converter
Convert acres to hectares for farm reports, environmental assessments, and land listings in metric countries. This is the standard conversion needed when US farmland areas must be reported in international metric format.
Formula
Multiply acres by 0.404686 to get hectares. To reverse, divide hectares by 0.404686 to get acres.
Quick reference
| Acre (ac) | Hectare (ha) |
|---|---|
| 1 | 0.4046856 |
| 5 | 2.023428 |
| 10 | 4.046856 |
| 20 | 8.093713 |
| 50 | 20.23428 |
| 100 | 40.46856 |
| 200 | 80.93713 |
| 500 | 202.3428 |
| 1000 | 404.6856 |
| 5000 | 2,023.428 |
About these units
Acre
The acre is one of the oldest English area units, based on the amount of land a team of oxen could plow in a day. Its exact modern value of 4046.86 m² was fixed when the US survey foot was standardized.
Hectare
The hectare (ha) is the preferred unit for large land areas in metric countries, used in agriculture, forestry, and planning. It equals 10,000 m² or one square hectometer.
Frequently asked questions
10 × 0.404686 ≈ 4.047 ha.
1 acre ≈ 0.4047 ha.
100 ÷ 0.404686 ≈ 247.1 acres.