Hectares to Acres
Convert hectares to acres (ha to acres). 1 ha = 2.47105381467 acres. Use the calculator, formula and conversion table.
How to convert hectares to acres
Multiply the amount in hectares by 2.47105381467 to get acres. The displayed factor and results are rounded to 12 significant digits.
acres = ha × 2.47105381467Worked example
1 ha = 2.47105381467 acres. Change the amount in the calculator above to use your own value.
Units and assumptions
Area uses squared length factors: one square foot is exactly 0.09290304 square metres. Acres are international acres; hectares equal 10,000 square metres.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Hectares to Acres table
| Hectares (ha) | Acres (acres) |
|---|---|
| 0 | 0 |
| 1 | 2.47105381467 |
| 5 | 12.3552690734 |
| 10 | 24.7105381467 |
| 25 | 61.7763453668 |
| 100 | 247.105381467 |
| 1,000 | 2,471.05381467 |
About this conversion
What is the formula for hectares to acres?
acres = ha × 2.47105381467. Multiply the amount in hectares by 2.47105381467 to get acres. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to hectares?
Use the acres to hectares calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the area converter to browse all supported pairs.