Acre to Hectare Converter
Convert acres to hectares. One acre equals 0.404686 hectare.
The acre (imperial/US) and the hectare (metric) are the two main large land-area units. One acre equals 0.404686 hectare — so it takes about 2.47 acres to make a hectare. This converter turns acres into hectares, square metres and square feet.
How to convert acres to hectares
Hectares = acres × 0.404686
| Acres | Hectares |
|---|---|
| 1 acre | 0.4047 ha |
| 2.5 acres | 1.0117 ha |
| 5 acres | 2.0234 ha |
| 10 acres | 4.0469 ha |
Worked example
A 7-acre farm: 7 × 0.404686 = 2.8328 hectares.
Acre and hectare in practice
Farmland and land records are increasingly kept in hectares worldwide, while acres remain common in the US, UK and India for real-estate and agriculture. Converting acres to hectares is needed whenever local plot sizes must be reported in metric units.
Frequently asked questions
How many hectares is 1 acre?
0.404686 hectare.
How many acres is 1 hectare?
2.47105 acres (the inverse).
How many square metres in an acre?
4,046.86 square metres.
Is the factor fixed everywhere?
Yes — acre and hectare are internationally standardised.
Related converters
Conversions use standard internationally-agreed factors and are for general guidance.