Convert acres to hectares
Convert acres to hectares instantly in your browser. 1 ac = 0.404686 ha. Free, no sign-up, nothing uploaded.
1 ac = 0.404686 ha
How to convert acres to hectares
acres × 0.4046856422 = hectares
An acre was originally the area one man with one ox could plough in a day, which is why it is an odd 4046.86 m². A hectare is simply 100 m by 100 m, so roughly two and a half acres.
acres to hectares conversion table
| acres | hectares |
|---|---|
| 1 ac | 0.404686 ha |
| 2 ac | 0.809371 ha |
| 5 ac | 2.02343 ha |
| 10 ac | 4.04686 ha |
| 20 ac | 8.09371 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
What a acre and a hectare are
Both are units of area, which is what makes them convertible at all: the converter above works by taking your value to a single reference unit for that family and back out again, so the figure it gives is the same one the table shows, carried to more digits. Nothing is sent anywhere to compute it — the arithmetic runs in this page, in your browser.
Other conversions
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