Hectares to Acres Converter
Type a value in hectares to see it in acres as you type, with the exact formula and a reference chart.
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How this was calculated
- 1 hectare = 2.471053815 acres
- 10 × 2.471053815 = 24.710538 ac
| ha | ac |
|---|---|
| 0.1 ha | 0.247105 ac |
| 0.25 ha | 0.617763 ac |
| 0.5 ha | 1.23553 ac |
| 1 ha | 2.47105 ac |
| 2 ha | 4.94211 ac |
| 5 ha | 12.3553 ac |
| 10 ha | 24.7105 ac |
| 20 ha | 49.4211 ac |
| 25 ha | 61.7763 ac |
| 50 ha | 123.553 ac |
| 100 ha | 247.105 ac |
| 500 ha | 1,235.53 ac |
| 1,000 ha | 2,471.05 ac |
| ac | ha |
|---|---|
| 0.25 ac | 0.101171 ha |
| 0.5 ac | 0.202343 ha |
| 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 |
| 40 ac | 16.1874 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
| 160 ac | 64.7497 ha |
| 640 ac | 258.999 ha |
How to convert hectares to acres
1 hectare = 2.471053815 acres. To convert hectares to acres, multiply by 2.471053815. A hectare is 10,000 m², a 100 m × 100 m square. An acre is 43,560 square feet, about 4,046.86 m².
Worked examples
- 1 hectare = 2.47105 ac (1 × 2.4710538)
- 10 hectares = 24.7105 ac (10 × 2.4710538)
- 100 hectares = 247.105 ac (100 × 2.4710538)
Where this conversion comes up
Hectares are used for farmland and forest area in most countries; acres for land, farm and lot sizes in the US and UK. A hectare is 2.471 acres. Farm, forest and park areas are often reported in hectares outside the US.
Quick estimate
Multiply by 2.5 (1.2% high).
Common mistakes
- Dividing instead of multiplying. A acre is smaller than a hectare, so the number of acres must come out larger: 1 hectare = 2.47105 ac.
- Rounding too early. Keep the full factor until the last step; rounding 2.47 to 2 first puts large values noticeably off.
Going the other way? Use the acres to hectares converter. Related area converters: acres to square feet, square feet to square meters, square meters to square feet, square feet to acres, square inches to square feet, square feet to square yards.
Frequently asked questions
How do you convert hectares to acres?
Multiply the hectares by 2.471053815. For example, 10 hectares is 24.7105 acres.
How many acres are in one hectare?
One hectare is 2.471053815 acres. A hectare is 10,000 m², a 100 m × 100 m square.
What is 100 hectares in acres?
100 hectares is 247.105 acres.
Is there a quick way to estimate hectares to acres?
Multiply by 2.5 (1.2% high).