Hectare to acre: exact factor and conversion table
1 hectare ≈ 2.471054 acres
Hectare and acre are both international standard units. This conversion is the same everywhere.
Open in the calculatorExact factor
1 hectare = 390,625,000/158080329 acres.
≈ marks a value rounded for display. The fraction above is the exact factor.
The calculator opens this with the Madhya Pradesh standard-units choice. Standard-unit conversions are the same in every state.
How to convert
acres ≈ hectare amount × 2.471054.
Example: 5 hectares × 2.471054 ≈ 12.35527 acres.
To convert back, divide the number of acres by 2.471054.
Conversion table
| hectares | acres |
|---|---|
| 1 hectare | ≈ 2.471054 acres |
| 2 hectares | ≈ 4.942108 acres |
| 5 hectares | ≈ 12.35527 acres |
| 10 hectares | ≈ 24.71054 acres |
| 20 hectares | ≈ 49.42108 acres |
| 100 hectares | ≈ 247.1054 acres |
Local units
Looking for Bigha, Guntha, Cent or Katha? Their size varies by place, so use the guide for your state.
Sources and definitions
- Handbook 44 (2026), Appendix C: General Tables of Units of Measurement
National Institute of Standards and Technology
Appendix C, printed C-23 / PDF p.23
Document titles retain their original language. These are the standard definitions of the units.