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Area
Square miles to Hectares
Convert square miles (mi²) to hectares (ha). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 mi² = 259 ha
Square miles to Hectares Conversion Table
Common values, ready to copy:
| square miles | hectares |
|---|---|
| 1 mi² | 259 ha |
| 2 mi² | 518 ha |
| 5 mi² | 1294.99 ha |
| 10 mi² | 2589.99 ha |
| 25 mi² | 6474.97 ha |
| 50 mi² | 12949.94 ha |
| 100 mi² | 25899.88 ha |
| 1,000 mi² | 258998.81 ha |
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Formula
hectares = square miles × 258.998811
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
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