Hectare to Acre
Free instant hectare to acre converter. 1 ha = 2.47105 ac.
Common Hectare to Acre values
| Hectare (ha) | Acre (ac) |
|---|---|
| 1 | 2.47105 |
| 5 | 12.3553 |
| 10 | 24.7105 |
| 25 | 61.7763 |
| 50 | 123.553 |
| 100 | 247.105 |
| 500 | 1235.53 |
| 1000 | 2471.05 |
How does Hectare to Acre conversion work?
Type a value in the Hectare (ha) field and the equivalent in Acre (ac) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Hectare. A square 100 metres on each side. About 2.47 acres. The standard land-area unit in most metric countries.
Acre. The traditional land-area unit in the US, UK, and many former British colonies. About 4,047 square metres.
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🎯 Accurate conversions
Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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