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Hectares - Acres Converter

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Convert between hectares and acres (ha and ac) using this area conversion tool. This converter is part of the full area converter. Simply choose whether you want to convert hectares to acres or acres to hectares, enter a value and click the 'convert' button. Reference charts are available down the page.


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Whilst every effort has been made in building this hectares - acres converter, we are not to be held liable for any special, incidental, indirect or consequential damages or monetary losses of any kind arising out of or in connection with the use of the converter tools and information derived from the web site. This hectares - acres converter is here purely as a service to you, please use it at your own risk. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate conversions.

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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 4 decimal places (6 with smaller numbers) to give approximations.

Acres and hectares reference chart

Acres Hectares Hectares Acres
0.1 0.0405 0.1 0.2471
1 0.4047 1 2.4711
2 0.8094 2 4.9421
3 1.2141 3 7.4132
4 1.6187 4 9.8842
5 2.0234 5 12.3553
6 2.4281 6 14.8263
7 2.8328 7 17.2974
8 3.2375 8 19.7684
9 3.6422 9 22.2395
10 4.0469 10 24.7105
20 8.0937 20 49.4211
30 12.1406 30 74.1316
40 16.1874 40 98.8422
50 20.2343 50 123.5527
60 24.2811 60 148.2632
70 28.328 70 172.9738
80 32.3749 80 197.6843
90 36.4217 90 222.3948
100 40.4686 100 247.1054

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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