Hectare to Acre Converter
Convert Hectare (ha) to Acre (ac) instantly. 1 ha = 2.471054 ac.
Area Converter
20 units available
1 ha = 2.471054 ac
Formula:
ac = ha × 2.4710538147With your value: 1 ha = 2.47105381 ac
How big is that?
Everyday references on a logarithmic scale, all expressed in hectare so you can sanity-check the result.
Other Hectare to Acre conversions
Hectare to Acre Conversion Table
| Hectare (ha) | Acre (ac) |
|---|---|
| 0.5 | 1.235527 |
| 1 | 2.471054 |
| 2 | 4.942108 |
| 5 | 12.355269 |
| 10 | 24.710538 |
| 15 | 37.065807 |
| 20 | 49.421076 |
| 25 | 61.776345 |
| 50 | 123.552691 |
| 100 | 247.105381 |
| 250 | 617.763454 |
| 500 | 1,235.526907 |
| 1000 | 2,471.053815 |
Acre to Hectare Conversion Table
| Acre (ac) | Hectare (ha) |
|---|---|
| 0.5 | 0.202343 |
| 1 | 0.404686 |
| 2 | 0.809371 |
| 5 | 2.023428 |
| 10 | 4.046856 |
| 15 | 6.070285 |
| 20 | 8.093713 |
| 25 | 10.117141 |
| 50 | 20.234282 |
| 100 | 40.468564 |
| 250 | 101.171411 |
| 500 | 202.342821 |
| 1000 | 404.685642 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Hectare (ha)
Area
Derived from the square metre via the length definitions above.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Acre (ac)
Area
Derived from the square metre via the length definitions above.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Hectare to Acre
To convert from Hectare (ha) to Acre (ac), multiply the value by 2.4710538147.
Formula: ac = ha × 2.4710538147
Reverse: ha = ac × 0.4046856422
Step-by-Step Example
- Start with your value in Hectare. For example: 5 ha
- Multiply by the conversion factor: 5 x 2.4710538147
- The result is: 12.355269 ac
About Hectare
The hectare equals 10,000 square meters or about 2.471 acres. It is the primary unit for land measurement in most countries.
Common uses: agriculture, forestry, land planning.
About Acre
The acre is a unit of land area equal to 43,560 square feet or about 4,047 square meters. It is used primarily in the US, UK, and former British colonies.
Fun Fact: An acre was originally defined as the amount of land a yoke of oxen could plow in one day.
Common uses: land measurement, agriculture, real estate.
Frequently Asked Questions
How many Acre are in 1 Hectare?
There are exactly 2.4710538147 Acre in 1 Hectare. This means the conversion factor from Hectare to Acre is 2.4710538147.
What is the formula to convert Hectare to Acre?
The formula to convert Hectare to Acre is: ac = ha × 2.4710538147. For example, to convert 10 Hectare to Acre, you would multiply 10 by 2.4710538147.
What is a Hectare?
The hectare equals 10,000 square meters or about 2.471 acres. It is the primary unit for land measurement in most countries.
What is a Acre?
The acre is a unit of land area equal to 43,560 square feet or about 4,047 square meters. It is used primarily in the US, UK, and former British colonies.
What are the common uses of Hectare?
The Hectare is commonly used in agriculture, forestry, land planning.
Related Area Conversions
Cite this page
UnitConvertLab. (2026). Hectare to Acre converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/hectare-to-acre