Square Miles to Hectares
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sqmi
ha
Quick reference
| Square Miles (sqmi) | Hectares (ha) |
|---|
Formula
Hectares = square miles × 258.9988
Multiply the square miles value by 258.9988 to get hectares. To reverse — divide hectares by 258.9988 to get square miles.
About this conversion
The square mile (mi²) is an imperial unit of area equal to 640 acres or approximately 2.59 km². Learn more →
The hectare (ha) is equal to 10,000 square meters, used internationally for land and agriculture. Learn more →
Source: NIST International Reference