Hectare (ha)
The hectare (ha) is 10 000 m², a square 100 m on each side. It is the standard unit for land and farm area outside the US.
Symbol: ha
Quantity: area
SI relation: 1 ha = 10000 m² (exact)
Derivation: 1 ha = 100 m × 100 m = 10 000 m² (a non-SI unit accepted for use with the SI)
Exact: yes, by definition
Typical uses
- Farm and forest land
- Real estate and land records
- Crop yields per hectare
Convert hectares to other units
| Conversion | 1 ha equals | Reverse |
|---|---|---|
| hectare to square meter | 10000 m² | square meter to hectare |
| hectare to square centimeter | 100000000 cm² | square centimeter to hectare |
| hectare to square foot | 107639.1042 ft² | square foot to hectare |
| hectare to square inch | 15500031 in² | square inch to hectare |
| hectare to acre | 2.471053815 ac | acre to hectare |
| hectare to square millimeter | 10000000000 mm² | square millimeter to hectare |
| hectare to square kilometre | 0.01 km² | square kilometre to hectare |
| hectare to square yard | 11959.90046 yd² | square yard to hectare |
| hectare to square mile | 0.003861021585 mi² | square mile to hectare |
Open the Area Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8, non-SI units accepted for use with the SI.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Hectare (ha). Retrieved October 25, 2026, from https://scientificconverters.com/units/hectare/
IEEE
Scientific Converters, "Hectare (ha)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/hectare/