Unit converter
Hectares to Acres Converter
One hectare equals about 2.47105 acres, because a hectare is 10,000 square metres and an acre is 4,046.8564224 square metres. Put a metric land area into this tool and it returns the acreage, with a reference table covering the common sizes. The pairing matters on farms straddling metric and imperial paperwork, in forestry and conservation where land is mapped in hectares but grants are quoted per acre, and when reading European property listings against acre-based expectations.
1 hectare = 2.4711 acres
Common hectares to acres values
| Hectares | Acres |
|---|---|
| 1 ha | 2.4711 ac |
| 2 ha | 4.9421 ac |
| 5 ha | 12.3553 ac |
| 10 ha | 24.7105 ac |
| 20 ha | 49.4211 ac |
| 50 ha | 123.55 ac |
| 100 ha | 247.11 ac |
How to convert
- Take the area in hectares.
- Multiply by 2.471053815 to get acres, since one hectare is 10,000 m² and an acre is 4,046.8564224 m².
- The result is the same parcel expressed in acres.
- Going back, divide an acre figure by 2.471053815 (or multiply by 0.404686) to return to hectares.
- For mental sums, two and a half acres to the hectare is close enough: 4 hectares is roughly 10 acres.
acres = hectares × 2.471053815
A hectare is 10,000 square metres and an acre is 4,046.8564224 square metres, so each hectare holds 10,000 divided by 4,046.8564224 acres, roughly 2.471053815. Multiply hectares by this ratio to reach acres.
- ha
- the area in hectares you start with
- 2.471053815
- acres in one hectare (10,000 ÷ 4,046.8564224)
Worked example
A 2.5-hectare smallholding is 2.5 times 2.471053815, which is about 6.18 acres. A single hectare alone is 2.47 acres, a little under two and a half.
Key facts
- One hectare is about 2.471 acres.
- A hectare is 10,000 square metres, a square 100 m on each side.
- Ten hectares come to roughly 24.71 acres.
- A square kilometre is 100 hectares, or about 247.1 acres.
Tips
- For a quick estimate, multiply hectares by 2.5 and shave off about 1 percent.
- Keep full precision through the calculation and round only the final acreage.
Frequently asked questions
How many acres are in 1 hectare?+
About 2.471053815 acres. The value is the ratio of 10,000 m² to 4,046.8564224 m² and never rounds to a tidy whole number.
Is a hectare bigger than an acre?+
Yes, by a fair margin. One hectare is nearly two and a half acres, so the metric unit covers more ground.
How do I convert 10 hectares?+
Multiply 10 by 2.471053815 for about 24.71 acres.
Why is the factor not a round number?+
The acre descends from imperial yards and the hectare from metres, two systems that were never designed to line up neatly.
Things to watch
- Do not confuse the acre with the are (100 m²); the are is a hundredth of a hectare and a different unit entirely.
Sources
Last updated: 2026-01-01
Conversions use internationally defined factors. Provided for general use; verify critical measurements independently.