Acres to Hectares Converter
Convert acres to hectares instantly. One acre equals exactly 0.4046856 hectares. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert acres to hectares
Worked example: convert 15 acres to hectares. Using hectares ← acres × 0.4046856422, we get 15 × 0.4046856422 = 6.0702846 ha. To check the result, convert back: 6.0702846 ha ÷ 0.4046856422 = 15 ac.
Acres to hectares chart
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 ac | 0.4046856 ha |
| 2 ac | 0.8093713 ha |
| 3 ac | 1.214057 ha |
| 4 ac | 1.618743 ha |
| 5 ac | 2.023428 ha |
| 6 ac | 2.428114 ha |
| 8 ac | 3.237485 ha |
| 10 ac | 4.046856 ha |
| 12 ac | 4.856228 ha |
| 15 ac | 6.070285 ha |
| 20 ac | 8.093713 ha |
| 25 ac | 10.11714 ha |
| 30 ac | 12.14057 ha |
| 40 ac | 16.18743 ha |
| 50 ac | 20.23428 ha |
| 75 ac | 30.35142 ha |
| 100 ac | 40.46856 ha |
| 150 ac | 60.70285 ha |
| 200 ac | 80.93713 ha |
| 250 ac | 101.1714 ha |
| 500 ac | 202.3428 ha |
| 1,000 ac | 404.6856 ha |
Hectares to acres (reverse)
| Hectares (ha) | Acres (ac) |
|---|---|
| 1 ha | 2.471054 ac |
| 2 ha | 4.942108 ac |
| 5 ha | 12.35527 ac |
| 10 ha | 24.71054 ac |
| 20 ha | 49.42108 ac |
| 50 ha | 123.5527 ac |
| 100 ha | 247.1054 ac |
| 250 ha | 617.7635 ac |
| 500 ha | 1,235.527 ac |
| 1,000 ha | 2,471.054 ac |
About the acre and the hectare
An acre is 43,560 square feet. It is the traditional unit for farmland and large property in the US and UK; an American football field including end zones covers about 1.3 acres.
A hectare is a square of 100 m by 100 m. Land area in most countries is measured in hectares, and one hectare is about 2.47 acres.
One hectare equals 2.471054 acres, which makes the hectare the larger unit of the two.
Everyday sizes in acres and hectares
| Everyday example (approximate) | In acres | In hectares |
|---|---|---|
| A tennis court | 0.064435 ac | 0.026076 ha |
| A basketball court | 0.10789 ac | 0.04366 ha |
| A soccer pitch | 1.7643 ac | 0.714 ha |
| A hectare | 2.4711 ac | 1 ha |
| Vatican City | 108.73 ac | 44 ha |
| Central Park in New York | 842.63 ac | 341 ha |
Acres to hectares FAQ
How many hectares are in one acre?
One acre equals exactly 0.4046856422 hectares. In the other direction, one hectare equals 2.4710538 acres.
How do I convert acres to hectares without a calculator?
convert 15 acres to hectares. Using hectares ← acres × 0.4046856422, we get 15 × 0.4046856422 = 6.0702846 ha. To check the result, convert back: 6.0702846 ha ÷ 0.4046856422 = 15 ac. For a quick estimate, round the factor to 0.4. Then 15 ac is about 6 ha, compared with the exact 6.07028 ha (an error of 1.2%). That is close enough for planning, but use the calculator above when the number matters.
What is a tennis court in hectares?
A tennis court is about 0.064435 acres, which is 0.026076 hectares. Treat that as an approximate everyday figure rather than an official measurement.
Are the acres and hectares the same in every country?
The international acre is exactly 4,046.8564224 m²; the US survey acre differs by about 0.0002%. The hectare is exactly 10,000 m².