Math & units
Area Converter
Convert square meters, hectares, 亩, acres and more.
Runs locally in your browser
Type into any unit and the others update instantly.
Common conversions
- 1 Hectare (ha) = 10000 Square meter (m²)
- 1 Mu (亩) = 666.6666667 Square meter (m²)
- 1 Acre (ac) = 4046.856422 Square meter (m²)
- 1 Square meter (m²) = 10.76391042 Square foot (ft²)
- 1 Square kilometer (km²) = 100 Hectare (ha)
The base unit is the square meter. A 亩 is 2000/3 m², so it never rounds to a neat decimal.