Acres to hectares
Type a value in either field to convert between acres and hectares.
1 ac = 0.404686 ha
How to convert acres to hectares
Multiply the value in acres by 0.404686 to get hectares.
Example: 10 ac = 4.04686 ha.
One acre is 4,046.86 square meters; one hectare is 10,000 square meters.
Frequently asked questions
How many hectares are in a acre?
1 ac equals 0.404686 ha.
How to convert acres to hectares
Multiply the value in acres by 0.404686 to get hectares.
Are these conversions exact?
Yes. They use the international definitions of each unit; results are rounded only for display.
| acres (ac) | hectares (ha) |
|---|---|
| 1 | 0.404686 |
| 2 | 0.809371 |
| 3 | 1.21406 |
| 4 | 1.61874 |
| 5 | 2.02343 |
| 6 | 2.42811 |
| 7 | 2.8328 |
| 8 | 3.23749 |
| 9 | 3.64217 |
| 10 | 4.04686 |
| 12 | 4.85623 |
| 15 | 6.07028 |
| 20 | 8.09371 |
| 25 | 10.1171 |
| 30 | 12.1406 |
| 40 | 16.1874 |
| 50 | 20.2343 |
| 60 | 24.2811 |
| 70 | 28.328 |
| 75 | 30.3514 |
| 80 | 32.3749 |
| 90 | 36.4217 |
| 100 | 40.4686 |
| 150 | 60.7028 |
| 200 | 80.9371 |
| 250 | 101.171 |
| 500 | 202.343 |
| 1,000 | 404.686 |