Square Miles (sq mi)
Area · Imperial
Main conversion
1 sq mi = 2.59E+06 m² (259 ha)
Description and history
The square mile (symbol sq mi) equals 640 acres, about 259 hectares or 2.59 square kilometers.
In the United States Public Land Survey System it forms a standard section of rural land, divided into 160-acre quarter-sections. It is used in North American land mapping and agricultural planning.
Reference conversions
| Unit | Equals |
|---|---|
| Square Meters (m²) | 1 sq mi = 2.59E+06 m² |
| Hectares (ha) | 1 sq mi = 259 ha |
| Are (a) | 1 sq mi = 25900 a |
| Acres (ac) | 1 sq mi = 640 ac |
| Square Kilometers (km²) | 1 sq mi = 2.59 km² |
