Calc

Hectares - Acres Converter

icon

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.

Spelling: American | British


Group digits?




Disclaimer

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.

Please see the full disclaimer for more information.


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.

Acres and hectares reference chart

Acres Hectares Hectares Acres
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

Ares and Acres, Cents and Acres, Hectares and Acres, Hectares and Ares, Hectares and Cents, Square Centimeters and Acres, Square Centimeters and Hectares, Square Decimeters and Acres, Square Decimeters and Hectares, Square Dekameters and Acres, Square Dekameters and Hectares, Square Fathoms and Acres, Square Fathoms and Hectares, Square Feet and Acres, Square Feet and Hectares, Square Hectometers and Acres, Square Hectometers and Hectares, Square Inches and Acres, Square Inches and Hectares, Square Kilometers and Acres, Square Kilometers and Hectares, Square Meters and Acres, Square Meters and Hectares, Square Miles and Acres, Square Miles and Hectares, Square Millimeters and Acres, Square Millimeters and Hectares, Square Rods and Acres, Square Rods and Hectares, Square Yards and Acres, Square Yards and Hectares,


Featured article

The history of the calculator

Photo of abacus

From abacus to iPad, learn how the calculator came about and developed through the ages. Read our featured article.