How to convert hectares to acres
ac = ha × 2.471053815
Example: 5 ha × 2.471053815 = 12.35526907 ac
Hectares to Acres table
| Hectares (ha) | Acres (ac) |
|---|---|
| 0.5 ha | 1.2355269 ac |
| 1 ha | 2.4710538 ac |
| 2 ha | 4.9421076 ac |
| 3 ha | 7.4131614 ac |
| 4 ha | 9.8842153 ac |
| 5 ha | 12.355269 ac |
| 6 ha | 14.826323 ac |
| 7 ha | 17.297377 ac |
| 8 ha | 19.768431 ac |
| 9 ha | 22.239484 ac |
| 10 ha | 24.710538 ac |
| 15 ha | 37.065807 ac |
| 20 ha | 49.421076 ac |
| 25 ha | 61.776345 ac |
| 30 ha | 74.131614 ac |
| 40 ha | 98.842153 ac |
| 50 ha | 123.55269 ac |
| 75 ha | 185.32904 ac |
| 100 ha | 247.10538 ac |
| 250 ha | 617.76345 ac |
| 500 ha | 1,235.5269 ac |
| 1,000 ha | 2,471.0538 ac |
About these units
Hectares (ha): A hectare is 10,000 m² (a square 100 m on each side), about 2.471 acres. It is the standard metric unit for land.
Acres (ac): An acre is 43,560 square feet, or exactly 4,046.8564224 m². It is the usual unit for farmland and plots in the US, UK and South Asia.
Frequently asked questions
How many acres are in 1 hectare?
1 hectare (ha) equals 2.471053815 acres.
How do I convert ha to ac?
Multiply the value in hectares by 2.471053815. For example, 5 ha × 2.471053815 = 12.35526907 ac.
How do I convert acres back to hectares?
Multiply by 0.4046856422 (or divide by 2.471053815). 1 ac = 0.4046856422 ha.
What is a hectare?
A hectare is 10,000 m² (a square 100 m on each side), about 2.471 acres. It is the standard metric unit for land.
Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every area unit at once? Use the Area Converter.