Convert Acres to hectares
1 acre = 0.404686 hectares · ha = ac ÷ 2.471053815
When you need this conversion
Land and farming drive this conversion. Agricultural yields, land sales, and government subsidy programs are reported in hectares in most countries and in acres in the US and UK, so anyone comparing farm data across borders needs it.
Acres to hectares conversion table
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 ac | 0.404686 ha |
| 2 ac | 0.809371 ha |
| 3 ac | 1.2141 ha |
| 5 ac | 2.0234 ha |
| 10 ac | 4.0469 ha |
| 15 ac | 6.0703 ha |
| 20 ac | 8.0937 ha |
| 25 ac | 10.1171 ha |
| 50 ac | 20.2343 ha |
| 75 ac | 30.3514 ha |
| 100 ac | 40.4686 ha |
| 250 ac | 101.17 ha |
| 500 ac | 202.34 ha |
| 1,000 ac | 404.69 ha |
The formula
ha = ac ÷ 2.471053815Because both units measure area, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Hectares to acres →Related area conversions
- Square meters to square feet
- Square feet to square meters
- Square millimeters to hectares
- Square centimeters to hectares
- Square meters to hectares
- Square kilometers to hectares
- Square inches to hectares
- Square feet to hectares
- Square yards to hectares
- Square miles to hectares
- Acres to square millimeters
- Acres to square centimeters
Frequently asked questions
- How many hectares are in a acre?
- There are 0.404686 hectares in 1 acre. The formula is ha = ac ÷ 2.471053815.
- How do you convert acres to hectares?
- Use the formula ha = ac ÷ 2.471053815. For example, 10 acres equals 4.0469 hectares.
- Is the acres to hectares conversion exact?
- Yes. Acres and hectares are both units of area, related by an exact defined factor. Displayed results are rounded for readability.
- What is ac short for?
- ac is the standard symbol for acre. ha is the symbol for hectare.