Acres to Hectares
Enter a value in Acres and get the result in Hectares instantly.
1 ac = 0.404686 ha
How to convert Acres to Hectares
Multiply the number of Acres by 0.404686 to get Hectares. To go the other way, divide by that same number instead.
Acres to Hectares conversion table
| Acres | Hectares |
|---|---|
| 1 ac | 0.404686 ha |
| 2 ac | 0.809371 ha |
| 3 ac | 1.2141 ha |
| 5 ac | 2.0234 ha |
| 10 ac | 4.0469 ha |
| 20 ac | 8.0937 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
Land and surface units
Area units square their length counterparts, so the ratios get large quickly: one square meter is 10.764 square feet, and one hectare (10,000 m²) is 2.471 acres. Hectares are the metric standard for land, acres the customary unit in the US and UK.
Common questions
How many hectares are in 1 ac?
One ac equals 0.404686 ha. Multiply any number of acres by 0.404686 to get the same amount in hectares.
How do I convert acres to hectares quickly?
For a rough figure in your head, round 0.404686 to the nearest easy number and adjust. Use the converter above when the exact value matters.
Is this conversion exact?
The ratio between acres and hectares is a fixed, defined value, so the conversion is exact. Results are rounded for display only.