Hectares to Acres
Type hectares (ha), see acres (ac).
By Akash Yadav Updated 27 September 2026
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The formula
How to convert hectares to acres
To change hectares into acres, multiply by 2.471053814672.
acres = hectares × 2.471053814672
Going the other way: hectares = acres × 0.40468564224
1 hectare = 2.47105381 acres. This factor does not end, so results on this page are rounded.
Worked example
You have 10 hectares. Multiply by 2.471053814672. 10 × 2.471053814672 = 24.7105 ac.
Common values
Hectares to acres conversion table
| Hectares (ha) | Acres (ac) |
|---|---|
| 0.1 ha | 0.2471 ac |
| 0.25 ha | 0.6178 ac |
| 0.5 ha | 1.2355 ac |
| 1 ha | 2.4711 ac |
| 2 ha | 4.9421 ac |
| 2.5 ha | 6.1776 ac |
| 5 ha | 12.3553 ac |
| 10 ha | 24.7105 ac |
| 20 ha | 49.4211 ac |
| 25 ha | 61.7763 ac |
| 50 ha | 123.5527 ac |
| 100 ha | 247.1054 ac |
| 250 ha | 617.7635 ac |
| 500 ha | 1235.5269 ac |
| 1000 ha | 2471.0538 ac |
Before you rely on it
A hectare is about two and a half acres
A hectare is a square 100 m on each side, exactly 10,000 m². An acre is exactly 4046.8564224 m², so a hectare is about 2.471 acres. The factor does not end, so answers here are rounded.
For a quick estimate, multiply by 2.5 and take off about 1 percent. 40 ha is about 100 acres minus 1, roughly 99 — against a true 98.8.
Farmland, forests and parks are measured in hectares in most of the world and in acres in the US, the UK and a few other countries. 100 hectares is exactly 1 square kilometer, about 247 acres.
This page uses the international acre. Older US land records may use the US survey acre, about 4 parts per million larger; the difference is under 0.01 acres even on a 1000-hectare estate.
Common questions
Frequently asked questions
How many acres is 1 hectare?
1 hectare is about 2.4711 acres.
How many acres is 10 hectares?
10 hectares is about 24.71 acres.
How many acres is 5 hectares?
5 hectares is about 12.36 acres.
How many acres is 100 hectares?
100 hectares, one square kilometer, is about 247.11 acres.
Is a hectare bigger than an acre?
Yes — about 2.47 times bigger.
How many square meters is a hectare?
1 hectare is exactly 10,000 m².
Keep going
Related converters
- Acres to Hectares ac → ha
- Acres to Square Feet ac → ft²
- Square Meters to Square Feet m² → ft²
- All area converters
Every factor on this page is listed in our conversion methodology.