Acres to Hectares formula
hectares = acres × 0.404686
Multiply the number of acres by 0.404686 to get hectares. To go the other way, multiply by 2.47105 instead, or use the hectares to acres converter.
Acres to Hectares conversion table
Common acres to hectares values, rounded for reading. The converter above keeps full precision.
| Acres | Hectares |
|---|---|
| 1 ac | 0.404686 ha |
| 2 ac | 0.809371 ha |
| 3 ac | 1.21406 ha |
| 4 ac | 1.61874 ha |
| 5 ac | 2.02343 ha |
| 10 ac | 4.04686 ha |
| 15 ac | 6.07028 ha |
| 20 ac | 8.09371 ha |
| 25 ac | 10.1171 ha |
| 50 ac | 20.2343 ha |
| 75 ac | 30.3514 ha |
| 100 ac | 40.4686 ha |
| 250 ac | 101.171 ha |
| 500 ac | 202.343 ha |
| 1,000 ac | 404.686 ha |
Worked example
To convert 10 ac to hectares, multiply by 0.404686: the result is 4.04686 ha. Area conversion factors are squared length factors. One acre equals exactly 4,046.8564224 square meters.
Frequently asked questions
How many hectares are in a acre?
One acre equals 0.404686 hectares (1 ac = 0.404686 ha).
What is 10 acres in hectares?
10 ac converts to 4.04686 ha. Enter any other value in the converter above to see it recalculated instantly.
How do I convert hectares back to acres?
Reverse the calculation: one hectare equals 2.47105 acres. You can also swap the units in the converter or open the hectares to acres page.
Related area conversions
Need a different pair? Open the full area converter to choose any two units.