Acres to Hectares Converter
Convert acres (ac) to hectares (ha), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an area, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 ac = 0.40468564224 ha
- 1 × 0.40468564224 = 0.40468564224 ha
How to convert acres to hectares
1 ac = 0.40468564224 ha, so multiply by 0.40468564224 to go from acres to hectares. Going the other way, 1 ha = 2.47105381467 ac.
ha = ac × 0.40468564224 ac = ha × 2.47105381467
Worked example:
1 ac = 0.40468564224 ha 5 × 0.40468564224 = 2.0234282112 ha
Acres to hectares table
| Acres | Hectares |
|---|---|
| 1 ac | 0.40468564224 ha |
| 2 ac | 0.80937128448 ha |
| 3 ac | 1.21405692672 ha |
| 4 ac | 1.61874256896 ha |
| 5 ac | 2.0234282112 ha |
| 6 ac | 2.42811385344 ha |
| 7 ac | 2.83279949568 ha |
| 8 ac | 3.23748513792 ha |
| 9 ac | 3.64217078016 ha |
| 10 ac | 4.0468564224 ha |
| 15 ac | 6.0702846336 ha |
| 20 ac | 8.0937128448 ha |
| 25 ac | 10.117141056 ha |
| 30 ac | 12.1405692672 ha |
| 40 ac | 16.1874256896 ha |
| 50 ac | 20.234282112 ha |
| 75 ac | 30.351423168 ha |
| 100 ac | 40.468564224 ha |
| 250 ac | 101.17141056 ha |
| 500 ac | 202.34282112 ha |
| 1000 ac | 404.68564224 ha |
About the units
- Acres (ac)
- Acres, a US customary unit. Definition: NIST Handbook 44 Appendix C (1 acre = 43,560 sq ft, international-foot based).
- Hectares (ha)
- Hectares, a metric unit. Definition: BIPM SI Brochure (non-SI unit accepted for use with the SI).