Acre to Hectare Converter (ac to ha)
1 acre = 0.404686 hectare. An acre is 4,046.86 m2 and a hectare is exactly 10,000 m2, so 1 hectare is about 2.471 acres.
Result
5 ac = 2.02343 ha
How to convert acre to hectare
An acre is 4,046.86 m2 and a hectare is exactly 10,000 m2, so 1 hectare is about 2.471 acres. Land, farms and parks use these units, with acres in the US and UK and hectares elsewhere.
Formula
ha = ac × 0.404686
Worked example
5 ac × 0.404686 = 2.02343 ha
Acre to Hectare quick-reference table
| Acre (ac) | Hectare (ha) |
|---|---|
| 0.5 ac | 0.202343 ha |
| 1 ac | 0.404686 ha |
| 5 ac | 2.02343 ha |
| 10 ac | 4.04686 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
Real-life examples
A 5 acre plot is 2.02 hectares, and a 160 acre farm is about 64.75 ha.
Frequently asked questions
How many acres are in a hectare?
One hectare is 2.47105 acres.
How big is an acre?
An acre is 4,046.86 square meters, about three quarters of the area of an American football field including end zones.
What is 1 acre in hectare?
1 acre = 0.404686 hectare (ac to ha).
What is the formula to convert ac to ha?
ha = ac × 0.404686. For example, 5 ac × 0.404686 = 2.02343 ha.
How do I convert ha back to ac?
Use the reverse converter: 1 hectare = 2.47105 acre. Check: 2.02343 ha converts back to 5 ac.
Reverse conversion
Need the other direction? Hectare to Acre converter (ha to ac): 1 hectare = 2.47105 acre.
Related area conversions
- Square Foot to Square Meter converter
- Square Meter to Square Foot converter
- Acre to Square Foot converter
- Square Foot to Acre converter
- Square Mile to Square Kilometer converter
- Square Kilometer to Square Mile converter