Hectares to Acres Converter
Convert hectares to acres. The formula used here is 1 hectare = 2.47105381467 acres. The formula is ac = ha × 2.47105381467; 1 ha is 2.4711 ac.
A metric land area unit equal to 10,000 square meters.
A land area unit equal to 43,560 square feet.
Start with your value in hectares, then apply the formula below. It stays visible so you can catch rounding mistakes instead of just copying the output.
For property and construction decisions, carry the converted area with the source unit, rounding rule, and any assumptions about measured boundaries.
Area conversions square the underlying length scale, so small changes in length can become larger changes in area for large rooms or parcels. This page displays converted values with up to 4 decimal places by default.
| Hectares | Acres |
|---|---|
| 0.1 ha | 0.2471 ac |
| 1 ha | 2.4711 ac |
| 5 ha | 12.3553 ac |
| 10 ha | 24.7105 ac |
Useful for real-estate, land, and property records. Use the same formula with your exact input if the measurement needs to be documented.
Useful for flooring, paint, and construction estimates. Use the same formula with your exact input if the measurement needs to be documented.
Useful for mapping, agriculture, and site planning. Use the same formula with your exact input if the measurement needs to be documented.
How do I convert hectares to acres?
Enter the value in hectares and apply ac = ha × 2.47105381467. Round the acres result after the conversion, not before.
What is 1 hectare in acres?
1 ha equals 2.4711 ac with the current rounding setting. Keep more decimal places when the result feeds another calculation.
What is 0.1 ha in ac?
0.1 ha is 0.2471 ac. It appears in the lookup table so you can compare it with nearby amounts.
Can I convert acres back to hectares?
Yes. Use the reverse Acres to Hectares converter if you need to go the other direction.
How accurate is this hectares to acres conversion?
The calculator runs the formula in your browser and rounds results to 4 decimal places by default. Area conversions square the underlying length scale, so small changes in length can become larger changes in area for large rooms or parcels.