Hectares - Acres Converter
Convert between hectares (ha) and acres (ac). This converter is part of the full area converter tool. Simply choose which unit you want to convert from and to, enter a value and click the 'convert' button. A reference chart can be found further down the page.
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Converting acres and hectares
Some commonly asked questions are included below, as well as a reference chart. When making manual conversions, you can use the converter at the top of this page to check your answer.
How many hectares are there in 1 acre?
There are 0.40468564224 hectares in 1 acre. To convert from acres to hectares, multiply your figure by 0.40468564224 (or divide by 2.4710538146717) .
How many acres are there in 1 hectare?
There are 2.4710538146717 acres in 1 hectare. To convert from hectares to acres, multiply your figure by 2.4710538146717 (or divide by 0.40468564224) .
In the chart below, figures are rounded to a maximum of 3 decimal places (6 with smaller numbers) to give approximations.
|0.1||0.04 ha||0.1||0.247 ac|
|1||0.405 ha||1||2.471 ac|
|2||0.809 ha||2||4.942 ac|
|3||1.214 ha||3||7.413 ac|
|4||1.619 ha||4||9.884 ac|
|5||2.023 ha||5||12.355 ac|
|6||2.428 ha||6||14.826 ac|
|7||2.833 ha||7||17.297 ac|
|8||3.237 ha||8||19.768 ac|
|9||3.642 ha||9||22.239 ac|
|10||4.047 ha||10||24.711 ac|
|20||8.094 ha||20||49.421 ac|
|30||12.141 ha||30||74.132 ac|
|40||16.187 ha||40||98.842 ac|
|50||20.234 ha||50||123.553 ac|
|60||24.281 ha||60||148.263 ac|
|70||28.328 ha||70||172.974 ac|
|80||32.375 ha||80||197.684 ac|
|90||36.422 ha||90||222.395 ac|
|100||40.469 ha||100||247.105 ac|
What is an acre?
The acre is a unit of land commonly employed within North America and the Caribbean. It is equal to 4,047 square metres or 43,560 square feet. This measurement is roughly equivalent to 40 per cent of a hectare. Interestingly enough, the acre can trace its roots back to mediaeval times. It was defined as the area that could be ploughed in a single day with the help of an ox. One acre is approximately 76 per cent the size of a football field. Many suburban lots are between one-quarter and one-fifth of an acre in size. You can find out more about acres in the article, how big is an acre?
What is a hectare?
One hectare is the equivalent of 100 ares (10,000 square metres). This term was first used as far back as 1795 and it continues to be associated with the measurement of land. Another way to view a hectare is as a plot which contains 2.47 acres. To get a better understanding of the size of a hectare, Trafalgar Square and an international rugby pitch are roughly equivalent to this measurement. You can find out more about hectares in the article, how big is a hectare?
Other individual area converters
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