Are (a)
Area · Metric
Main conversion
1 a = 100 m² (0.01 ha)
Description and history
The are (symbol a) equals 100 square meters, a square with 10-meter sides, or one hundredth of a hectare.
Defined in 1795 as the metric land unit, it remains in Italian cadastral records alongside hectares and centiares. Viticulture and horticulture still use it for small plots.
Reference conversions
| Unit | Equals |
|---|---|
| Square Meters (m²) | 1 a = 100 m² |
| Hectares (ha) | 1 a = 0.01 ha |
| Acres (ac) | 1 a = 0.024711 ac |
| Square Kilometers (km²) | 1 a = 0.0001 km² |