Convert hectares to acres
1 ha = 2.47105381467 ac — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 25 area units
- Square kilometers km² 0.01
- Square hectometers hm² 1
- Square decameters dam² 100
- Square meters m² 10 000
- Square decimeters dm² 1 000 000
- Square centimeters cm² 100 000 000
- Square millimeters mm² 10 000 000 000
- Square micrometers µm² 1e+16
- Square nanometers nm² 1e+22
- Hectares ha 1
- Ares a 100
- Decares daa 10
- Square inches in² 15 500 031.0001
- Square feet ft² 107 639.104 167
- Square yards yd² 11 959.900 463
- Square miles mi² 0.003 861 021 585 42
- Acres ac 2.471 053 814 67
- Roods ro 9.884 215 258 69
- Square rods rd² 395.368 610 347
- Sections section 0.003 861 021 585 42
- Townships twp 0.000 107 250 599 595
- Roofing squares sq 1076.391 041 67
- Circular mils cmil 19 735 252 413 900
- Barns b 1e+32
- Tsubos 坪 3025
Every row is Hectare (ha) converted through the square meter, in exact rational arithmetic.
How to convert hectares to acres
Multiply the number of hectares by 2.47105381467 to get acres.
Hectare: The standard land-area unit almost everywhere outside the US.
Acre: Exactly 4840 square yards — historically a day of ploughing.
Hectare to Acre conversion table
| Hectares (ha) | Acres (ac) |
|---|---|
| 1 ha | 2.471 053 8 |
| 2 ha | 4.942 107 6 |
| 3 ha | 7.413 161 4 |
| 5 ha | 12.355 269 |
| 10 ha | 24.710 538 |
| 20 ha | 49.421 076 |
| 25 ha | 61.776 345 |
| 50 ha | 123.552 69 |
| 100 ha | 247.105 38 |
| 250 ha | 617.763 45 |
| 500 ha | 1235.5269 |
| 1000 ha | 2471.0538 |
Acre to Hectare conversion table
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 ac | 0.404 685 64 |
| 2 ac | 0.809 371 28 |
| 3 ac | 1.214 056 9 |
| 5 ac | 2.023 428 2 |
| 10 ac | 4.046 856 4 |
| 20 ac | 8.093 712 8 |
| 25 ac | 10.117 141 |
| 50 ac | 20.234 282 |
| 100 ac | 40.468 564 |
| 250 ac | 101.171 41 |
| 500 ac | 202.342 82 |
| 1000 ac | 404.685 64 |
Frequently asked
How many acres are in a hectare?
One hectare equals 2.471053815 acres (ha → ac). That figure is exact, not rounded.
How do you convert hectares to acres?
Multiply the number of hectares by 2.47105381467 to get acres.
What is 1 ac in hectares?
One acre is 0.4046856422 hectares.
What is 10 ha in ac?
10 ha = 24.710 538 ac.
What exactly is a hectare?
The standard land-area unit almost everywhere outside the US.
What exactly is a acre?
Exactly 4840 square yards — historically a day of ploughing.