Acres to Hectares
Type in either box. The formula, a table and every other unit are below.
Other units
How to convert
1 ac = 0.4046856422 ha
ha = ac × 0.4046856422
Example: 10 ac = 4.046856422 ha
Quick mental math. An acre is about 0.4 hectares. 10 acres is roughly 4 hectares (4.05 exactly).
Acres to Hectares table
| Acres | Hectares |
|---|---|
| 1 ac | 0.4046856422 ha |
| 2 ac | 0.8093712845 ha |
| 5 ac | 2.023428211 ha |
| 10 ac | 4.046856422 ha |
| 20 ac | 8.093712845 ha |
| 25 ac | 10.11714106 ha |
| 50 ac | 20.23428211 ha |
| 100 ac | 40.46856422 ha |
| 500 ac | 202.3428211 ha |
| 1000 ac | 404.6856422 ha |