Hectares (ha)
Area · Metric
Main conversion
1 ha = 10,000 m² (2.4711 ac)
Description and history
The hectare (symbol ha) is the metric unit used for agricultural land area.
It equals 10,000 square meters, a square with 100-meter sides, or 100 ares. France introduced it with the metric system in 1795. Land registries, land sales, fertilizer plans, seeding rates and yield reports use it worldwide.
Reference conversions
| Unit | Equals |
|---|---|
| Square Meters (m²) | 1 ha = 10,000 m² |
| Are (a) | 1 ha = 100 a |
| Acres (ac) | 1 ha = 2.4711 ac |
| Square Kilometers (km²) | 1 ha = 0.01 km² |