Hectares to Acres Converter
Convert hectares to acres instantly. 1 hectare = 2.47105 acres. Formula, table and the FIFA pitch reference both units share.
Written by Rahman · Last reviewed
Quick answer
One hectare equals 2.47105 acres. Multiply hectares by 2.47105 to get acres, so a 100-hectare farm is about 247 acres.
| Square metre (m²) | 10000 |
| Square kilometre (km²) | 0.01 |
| Square centimetre (cm²) | 100000000 |
| Square millimetre (mm²) | 1.000000000e+1 |
| Hectare (ha) | 1 |
| Acre (ac) | 2.471053815 |
| Square mile (mi²) | 0.003861021585 |
| Square yard (yd²) | 11959.90046 |
| Square foot (ft²) | 107639.1042 |
| Square inch (in²) | 15500031 |
ha to ac conversion table
| ha | ac |
|---|---|
| 1 ha | 2.471053815 ac |
| 2 ha | 4.942107629 ac |
| 3 ha | 7.413161444 ac |
| 4 ha | 9.884215259 ac |
| 5 ha | 12.35526907 ac |
| 6 ha | 14.82632289 ac |
| 7 ha | 17.2973767 ac |
| 8 ha | 19.76843052 ac |
| 9 ha | 22.23948433 ac |
| 10 ha | 24.71053815 ac |
| 20 ha | 49.42107629 ac |
| 30 ha | 74.13161444 ac |
| 40 ha | 98.84215259 ac |
| 50 ha | 123.5526907 ac |
| 60 ha | 148.2632289 ac |
| 70 ha | 172.973767 ac |
| 80 ha | 197.6843052 ac |
| 90 ha | 222.3948433 ac |
| 100 ha | 247.1053815 ac |
| 250 ha | 617.7634537 ac |
| 500 ha | 1235.526907 ac |
| 1000 ha | 2471.053815 ac |
How to convert ha to ac
A regulation FIFA football pitch (105 × 68 m, the size used for international matches) covers 0.714 hectares, or about 1.76 acres, a handy shared reference point since the pitch is a recognisable size to compare either unit against, unlike an abstract "hectare" or "acre" that most people cannot visualise directly.
The hectare is defined as exactly 10,000 square metres (a 100 m × 100 m square), making it a clean metric unit, while the acre's 43,560 sq ft comes from its old agricultural definition. The 2.47105 conversion factor is therefore where a tidy metric unit meets a historically-derived imperial one, which is why it does not resolve to any round number. Vineyards are conventionally described by the hectare in France and much of Europe and by the acre in the US and Australia, so comparing wine-estate sizes across those regions means converting one side before any comparison is meaningful.