Convert Hectares to Square Miles
One hectare equals 0.00386102 square miles. Type any value to convert hectares to square miles instantly — with a full reference table below.
Convert Hectares to Square Miles
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How to convert Hectares to Square Miles
To convert hectares to square miles, multiply by 0.00386102. One hectare equals 0.00386102 mi², and one square mile equals 258.9988 ha.
- Take the value in hectares — for example 7.5 ha.
- Multiply by 0.00386102 (the number of square miles in one hectare).
- 7.5 × 0.00386102 = 0.0289577 mi².
Quick mental estimate: Divide the number of hectares by 259 (accurate to better than 0.05%).
Hectares to Square Miles conversion table
| Hectares | Square Miles |
|---|---|
| 1 ha | 0.00386102 mi² |
| 2 ha | 0.00772204 mi² |
| 3 ha | 0.0115831 mi² |
| 5 ha | 0.0193051 mi² |
| 10 ha | 0.0386102 mi² |
| 20 ha | 0.0772204 mi² |
| 50 ha | 0.193051 mi² |
| 100 ha | 0.386102 mi² |
| 200 ha | 0.772204 mi² |
| 500 ha | 1.930511 mi² |
| 1,000 ha | 3.861022 mi² |
| 5,000 ha | 19.30511 mi² |
| Square Miles | Hectares |
|---|---|
| 1 mi² | 258.9988 ha |
| 2 mi² | 517.9976 ha |
| 3 mi² | 776.9964 ha |
| 5 mi² | 1,294.994 ha |
| 10 mi² | 2,589.988 ha |
| 20 mi² | 5,179.976 ha |
| 50 mi² | 12,949.94 ha |
| 100 mi² | 25,899.88 ha |
| 200 mi² | 51,799.76 ha |
| 500 mi² | 129,499.4 ha |
| 1,000 mi² | 258,998.8 ha |
| 5,000 mi² | 1,294,994 ha |
About converting Hectares to Square Miles
Hectares (ha) and Square Miles (mi²) are both units of area. The exact factor is 1 ha = 0.00386102 mi², so multiply by 0.00386102 to go from hectares to square miles (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Square Miles to Hectares converter, or the full unit converter for every unit at once.
Real-world area in hectares and square miles
| Example | Hectares | Square Miles |
|---|---|---|
| A doubles tennis court (23.77 × 10.97 m) | 0.0260757 ha | 0.000100679 mi² |
| An NBA basketball court (94 × 50 ft) | 0.0436644 ha | 0.000168589 mi² |
| An American football field (incl. end zones) | 0.535122 ha | 0.00206612 mi² |
| A football pitch (105 × 68 m) | 0.714 ha | 0.00275677 mi² |
| One acre | 0.404686 ha | 0.0015625 mi² |
“≈” marks typical values; the rest are defined or measured figures.
The units
10,000 m² — a square 100 m on each side.
Used for: Farmland and land records in metric countries.
A square 1 mile on each side: 640 acres, about 2.59 km².
Used for: US/UK land and city areas.
Area factors are the squares of exact length factors, so they are exact too (an international acre is exactly 4,046.8564224 m²).