How to convert hectares to acres
To convert hectares to acres, multiply the value by the conversion factor 2.471053815. To go the other way, multiply by 0.4046856422 (or divide by 2.471053815).
Worked example: 5 ha to ac
- Write the value: 5 ha
- Multiply by 2.471053815: 5 × 2.471053815
- Result: 12.3553 ac
Hectare to Acre conversion table
Quick reference values, rounded to 6 significant digits.
| Hectare (ha) | Acre (ac) |
|---|---|
| 0.1 ha | 0.247105 ac |
| 0.25 ha | 0.617763 ac |
| 0.5 ha | 1.23553 ac |
| 1 ha | 2.47105 ac |
| 2 ha | 4.94211 ac |
| 3 ha | 7.41316 ac |
| 4 ha | 9.88422 ac |
| 5 ha | 12.3553 ac |
| 6 ha | 14.8263 ac |
| 7 ha | 17.2974 ac |
| 8 ha | 19.7684 ac |
| 9 ha | 22.2395 ac |
| 10 ha | 24.7105 ac |
| 12 ha | 29.6526 ac |
| 15 ha | 37.0658 ac |
| 20 ha | 49.4211 ac |
| 25 ha | 61.7763 ac |
| 30 ha | 74.1316 ac |
| 40 ha | 98.8422 ac |
| 50 ha | 123.553 ac |
| 75 ha | 185.329 ac |
| 100 ha | 247.105 ac |
| 250 ha | 617.763 ac |
| 500 ha | 1,235.53 ac |
| 1,000 ha | 2,471.05 ac |
Acre to Hectare
| ac | ha |
|---|---|
| 1 ac | 0.404686 ha |
| 5 ac | 2.02343 ha |
| 10 ac | 4.04686 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
1 Hectare in other area & land units
About Hectare and Acre
What is a hectare (ha)?
A hectare equals 10,000 m² (about 2.471 acres) and is the standard metric unit for farmland and forests.
What is a acre (ac)?
An acre equals 43,560 square feet or 100 decimal. It is used for agricultural land in Bangladesh, India, the UK and the US.
Important for land buyers: traditional units like katha and bigha differ between districts. This converter uses the standard values used in Dhaka and most official calculations: 1 katha = 720 sq ft, 1 bigha = 20 katha = 14,400 sq ft, 1 decimal (shotok) = 435.6 sq ft, 1 acre = 100 decimal. Always confirm the local value written in your deed (দলিল) or with the land office (AC Land).
Where hectare to acre conversion is used
Area & land conversions are needed for buying and selling land, flats, deed (dolil) records, construction planning and farming. Converting between hectares and acres is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Area & Land Converter.
Frequently asked questions
How many acres are in 1 hectare?
1 Hectare equals 2.47105 ac.
How do I convert hectares to acres?
Multiply the number of hectares by 2.471053815. For example, 5 ha × 2.471053815 = 12.3553 ac.
What is 5 ha in ac?
5 ha = 12.3553 ac.
How many hectares are in 1 acre?
1 Acre equals 0.404686 ha. Use the Acre to Hectare converter for the reverse direction.
Is this Hectare to Acre converter accurate?
Yes. It uses exact internationally defined conversion factors and the standard Bangladeshi values for traditional units, calculated with full floating-point precision. Results are displayed rounded for readability.