Hectares to Acres Converter
Convert hectares (ha) to acres (acres) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Hectares to Acres formula
acres = ha × 2.4710538147
1 hectare = 2.47 acres · 1 acre = 0.4047 hectares
To convert hectares to acres, multiply the value by 2.4710538147. For example, 10 ha:
acres = 10 × 2.4710538147acres = 24.710538
So 10 ha = 24.71 acres.
Mental math shortcut
Quick mental estimate: multiply by 2.5. For 10 ha that gives about 25 acres — off by 0.2895 acres (1.2%). Use the exact formula when precision matters.
Hectares to Acres conversion table
Acres back to Hectares
The same values converted the other way, rounded for everyday use:
| Acres | Hectares |
|---|---|
| 1.24 acres | 0.5018 ha |
| 2.47 acres | 0.9996 ha |
| 4.94 acres | 2 ha |
| 12.36 acres | 5 ha |
| 24.71 acres | 10 ha |
| 49.42 acres | 20 ha |
| 123.55 acres | 50 ha |
| 247.11 acres | 100 ha |
About the units
Hectares (ha)
A hectare is 10,000 square meters (100 m × 100 m), about 2.471 acres. It is the metric unit for land.
Acres (acres)
An acre is 43,560 square feet (about 4,047 m²), used for land in the US and UK.
Frequently asked questions
How many acres are in a hectare?
One hectare equals 2.47 acres.
What is 10 Hectares in Acres?
10 ha = 24.71 acres.
How do I convert Acres back to Hectares?
Divide the acres by 2.4710538147. Or use the Acres to Hectares converter.