Convert Hectares to Square Miles
Convert Hectares (ha) to Square Miles (mi²) instantly and accurately.
Conversion Formula
mi² = ha × 0.003861021585
About Hectares
A hectare (ha) is a metric unit of area equal to 10,000 m² (100 m × 100 m). It is the primary unit for measuring agricultural land, forests, and large properties worldwide outside the United States. One hectare equals 2.471 acres. A FIFA-regulation football pitch is about 0.7 ha, and Vatican City is 44 ha. This unit is fundamental in agriculture, forestry, environmental conservation, and international land measurement standards.
About Square Miles
A square mile (mi²) is an imperial unit of area equal to a square with sides of one mile (5,280 ft × 5,280 ft). It is used for measuring large land areas like counties, states, and countries in the United States. Los Angeles covers about 503 mi², Rhode Island (smallest US state) is roughly 1,214 mi², and Alaska is about 665,384 mi². This unit is standard in American geography, land surveying, and regional planning.
Quick Reference Table
| Hectares (ha) | Square Miles (mi²) |
|---|---|
| 1 ha | 0.00386102 mi² |
| 2 ha | 0.00772204 mi² |
| 5 ha | 0.0193051 mi² |
| 10 ha | 0.0386102 mi² |
| 25 ha | 0.0965255 mi² |
| 50 ha | 0.193051 mi² |
| 100 ha | 0.386102 mi² |