How to convert hectares to acres
Hectares and Acres both measure area, so converting is a single multiplication. One ha equals 2.471054 ac, so you multiply your hectares value by 2.471054.
Formula: acres = hectares × 2.471054. For example, 10 ha = 24.710538 ac.
Hectares to Acres conversion table
| Hectares (ha) | Acres (ac) |
|---|---|
| 1 | 2.471054 |
| 2 | 4.942108 |
| 5 | 12.355269 |
| 10 | 24.710538 |
| 25 | 61.776346 |
| 50 | 123.552691 |
| 100 | 247.105383 |
| 1,000 | 2,471.053828 |
Hectares and Acres explained
Hectares (ha): Ten thousand square metres, the metric unit for land area.
Acres (ac): About 4,047 m², a traditional unit for land and farming.
When you'd convert hectares to acres
You'll convert hectares to acres whenever a measurement is given in one unit but you need it in the other — comparing hectares and acres figures across regions, following a recipe or spec, or double-checking a number. Because 1 ha is exactly 2.471054 ac, the result is precise every time.
Frequently asked questions
How many acres are in a hectare?
One ha equals 2.471054 ac. Multiply your hectares figure by 2.471054 to get acres.
What is the formula to convert hectares to acres?
acres = hectares × 2.471054. The factor 2.471054 is exact.
What is 2 hectares in acres?
2 ha = 4.942108 ac. You can enter any value in the converter above to get an instant result.
Is this Hectares to Acres converter accurate?
Yes. It uses the standard conversion factor (1 ha = 2.471054 ac) defined by BIPM — SI Brochure (derived units), so results are exact to several decimal places.