Instant Unit Conversion
Convert Hectares to Acres (ha to ac)
Exact formula, conversion factors, live calculator, and reference charts for hectares to acres.
Method reviewed:Exact defined factors — international yard and pound (1959), US customary gallon and cup, SI — the values NIST SP 811 lists · reviewed September 2026
Direct AnswerFormula: ac = ha ÷ 0.40468564224
1 hectare is equal to about 2.47105 acres. To convert hectares to acres, divide by 0.40468564224.
Live Hectares to Acres Calculator
Formula:
ac = ha ÷ 0.40468564224Open full area converter →Hectares to Acres Conversion Table
Quick reference conversion chart from 1 to 100 hectares.
| Hectares (ha) | Acres (ac) | Mathematical Formula |
|---|---|---|
| 1 ha | 2.4711 ac | 1 × 2.47105 |
| 2 ha | 4.9421 ac | 2 × 2.47105 |
| 5 ha | 12.3553 ac | 5 × 2.47105 |
| 10 ha | 24.7105 ac | 10 × 2.47105 |
| 15 ha | 37.0658 ac | 15 × 2.47105 |
| 20 ha | 49.4211 ac | 20 × 2.47105 |
| 25 ha | 61.7763 ac | 25 × 2.47105 |
| 50 ha | 123.5527 ac | 50 × 2.47105 |
| 75 ha | 185.329 ac | 75 × 2.47105 |
| 100 ha | 247.1054 ac | 100 × 2.47105 |
Frequently Asked Questions
What is 10 hectares in acres?
10 hectares is 24.7 acres.
How large is a hectare compared with a football pitch?
A hectare is 10,000 m². A full-size association football pitch is roughly 7,000 m², so a hectare is about one and a half pitches.
Which is used in farming statistics?
Hectares almost everywhere, including EU and FAO reporting. Acres persist in the US, UK and parts of the Commonwealth.