Acres to Hectares Converter
Convert acres to hectares and back instantly. One hectare is 2.47105 acres, and one acre is 0.404686 hectares — type any area and read off the precise result.
acres ↔ hectares
1 hectare = 2.47105 acres · 1 acre = 0.404686 ha.
1 acre = 0.404686 hectares; 1 hectare = 2.47105 acres. A hectare is 10,000 m² (100 m × 100 m).
Acres and hectares
The acre is a traditional imperial unit of land area, still widely used in UK property listings and farming. The hectare is its metric counterpart, used on official maps, in agriculture subsidies and across most of the world. One hectare is 10,000 square metres (a square 100 m by 100 m) and equals 2.47105 acres. One acre is 4,046.86 square metres, or 0.404686 hectares. To convert acres to hectares multiply by 0.404686; for hectares to acres multiply by 2.47105.
10 acres = 4.05 hectares (10 × 0.404686). Going the other way, 1 hectare = 2.47 acres. For a rough mental check, divide acres by about 2.5 to get hectares, or multiply hectares by 2.5 to get acres.
Acres to hectares reference table
| Acres | Hectares |
|---|---|
| 1 acre | 0.40 ha |
| 2 acres | 0.81 ha |
| 5 acres | 2.02 ha |
| 10 acres | 4.05 ha |
| 50 acres | 20.23 ha |
| 100 acres | 40.47 ha |
Based on the factor 1 acre = 0.404686 hectares. Useful for property, farmland and planning.
When you'll need this
Reading a property or land listing, comparing farmland sizes, checking a planning document, or making sense of agricultural figures quoted in hectares. For a sense of scale: one acre is close to the size of a standard football pitch, while a hectare is about two and a half acres. For other everyday conversions — length, weight, volume, temperature — see the unit converter and the square feet to square metres converter for smaller areas.
Frequently asked questions
How do I convert acres to hectares?
Multiply the number of acres by 0.404686. For example, 10 acres × 0.404686 = 4.05 hectares. To go the other way, multiply hectares by 2.47105.
How many acres is 1 hectare?
One hectare is 2.47105 acres. A hectare is a square 100 m by 100 m (10,000 m²), which is roughly two and a half acres.
How many hectares is an acre?
One acre is 0.404686 hectares, or about 4,047 square metres. The acre is a traditional imperial unit still common in UK property and farming.
How big is a hectare?
A hectare is 10,000 square metres — a square 100 metres on each side. That's about the size of a typical international rugby pitch including the in-goal areas, or roughly two football pitches.
Is there a quick way to estimate acres to hectares?
Yes — divide acres by about 2.5 for a close mental estimate of hectares. For an exact figure, multiply by 0.404686, which this converter does automatically.