Acre to Hectare
Convert acre to hectare with the exact factor, a quick reference table and three worked examples. Everything runs in your browser.
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FromAcre (ac)
ToHectare (ha)
0.404686ha
ha = ac × 0.404686Conversion formula
ha = ac × 0.404686 The conversion factor is 0.404686; multiply directly.
Common conversions
| Acre (ac) | Hectare (ha) |
|---|---|
| 1 | 0.404686 |
| 2 | 0.809371 |
| 5 | 2.0234 |
| 10 | 4.0469 |
| 20 | 8.0937 |
| 50 | 20.2343 |
| 100 | 40.4686 |
Worked examples
1
1 ac = 0.404686 ha
2
10 ac = 4.0469 ha
3
100 ac = 40.4686 ha
Frequently asked questions
How many hectare are in one acre?
One acre equals 0.404686 hectare. Use ha = ac × 0.404686 for any value.
What is the conversion formula?
The formula is ha = ac × 0.404686. Here ac is the input unit and ha is the output unit.
Is the result rounded?
The calculation uses the standard factor 0.404686. Displayed values keep up to six significant digits.
Related conversions
Hectare to Acre Square meter to Square foot Square foot to Square meter Square centimeter to Square meter
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