Hectares to Acres Converter
1 hectare = 2.47105 acres
The conversion from hectares to acres bridges two measurement traditions in surface area measurement. The acre originated in medieval England as the amount of land a yoke of oxen could plow in a day. Knowing that 1 ha equals 2.47105 ac is useful for real estate listings, farming, and land use planning in the US and UK.
Did you know? Did you know? The hectare is commonly used for agriculture (farm sizes), forestry, urban planning, and land surveying. The White House grounds cover about 18 acres - and knowing the conversion between these two units makes working across measurement systems effortless.
Conversion Formula
acres = hectares x 2.47105
To convert hectares to acres, multiply by 2.47105. One hectare is 10,000 m2 and one acre is 4,046.86 m2, so 10,000 / 4,046.86 = 2.47105.
Hectares to Acres Table
| Hectares (ha) | Acres (ac) |
|---|---|
| 0.5 | 1.23553 |
| 1 | 2.47105 |
| 2 | 4.9421 |
| 5 | 12.3553 |
| 10 | 24.7105 |
| 50 | 123.553 |
| 100 | 247.105 |
| 500 | 1235.53 |
| 1000 | 2471.05 |
| 10000 | 24710.5 |
About Hectares to Acres
The hectare-to-acre conversion is fundamental in agriculture, forestry, and land management worldwide. While most of the world uses hectares, the US, UK, and several Commonwealth countries still use acres.
A typical European farm might be 50 hectares (123.6 acres). A small US family farm averages about 200 acres (80.9 hectares). The world's largest individual farm - Anna Creek Station in Australia - covers 2.4 million hectares (5.93 million acres).
In wine production, Bordeaux's vineyards cover about 111,000 hectares (274,000 acres). A small boutique winery might have just 5 hectares (12.4 acres) of vines. Napa Valley spans approximately 18,800 hectares (46,400 acres).
Urban planning uses hectares extensively. Central Park in New York covers 341 hectares (843 acres). The city of Paris within its limits spans about 10,540 hectares (26,000 acres). London's Hyde Park is 142 hectares (351 acres).
Forest area is reported in hectares globally. The Amazon rainforest covers approximately 550 million hectares (1.36 billion acres). Deforestation rates are tracked in hectares lost per year.
For a quick estimate, multiply hectares by 2.5. So 10 hectares is about 25 acres, and 100 hectares is roughly 250 acres.
Frequently Asked Questions
How many acres is 1 hectare?
1 hectare equals 2.47105 acres, or roughly 2.5 acres. A hectare is about 2.47 times larger than an acre.
How big is a hectare visually?
A hectare (10,000 m2) is approximately the size of a rugby or American football field (including end zones). It is a square measuring 100 x 100 meters.
Which is bigger, a hectare or an acre?
A hectare is bigger. One hectare = 2.47 acres, so a hectare is roughly 2.5 times the size of an acre.
How many hectares in a square kilometer?
There are exactly 100 hectares in 1 square kilometer. Since 1 hectare = 10,000 m2 and 1 km2 = 1,000,000 m2, the ratio is 100.