Hectare and acres are often used during the purchase or sale of a large plot of land. These units are also convertible to each other, which can be done via dedicated tools like conversion calculators. Several area converter calculators are available online for hectare to acre conversion. The formula for such conversion is:
ac = ha x 2.4710
Whereby ‘ac’ denotes an acre and ‘ha’ stands for hectare.
What is meant by hectare?
A hectare refers to an area of a square comprising 10,000 units of square metres, with each side measuring 100 metres. Also, 1 square kilometre contains 100 hectares. Hectare is primarily used to measure land.
An international rugby union field comprises an area of almost 1 hectare (1.008 hectares), with the size of an average American baseball field measuring 1 hectare.
Although a non-SI metric unit, a hectare is the only unit for measurement of area accepted for use with SI units.
The term ‘hectare’ was first coined with the introduction of the metric system in 1795, and is a portmanteau of ‘hecto’ and ‘are’. ‘Hecto’ denotes a factor of one in the metric system, whereas ‘are’ refers to an area of measurement equalling 100 square metres.
The use of ‘are’ was excluded with an introduction of the International System of Units (SI) in 1960. However, a hectare continues to remain a valid unit of area measurement.
Hectare also has its origin in the Greek word “hekaton”, meaning 100.
Hectares to Other Units Conversion
Unit |
Conversion Unit |
Result |
1 Hectare |
acres |
2.47 |
1 Hectare |
square meters |
10,000 |
1 Hectare |
square feet |
107,639 |
1 Hectare |
square yards |
11,959 |
1 Hectare |
Square Kilometer |
0.01 |
What is an acre?
An acre is equal to 43,560 square feet precisely. It measures close to 40% of a hectare, i.e. 4,047 square metres, or 1/640 of a square mile.
The traditional definition of an acre is the area of 1 chain (66 feet) by 1 furlong (660 feet), which equals 10 square chains. 1 acre equals approximately 16 tennis courts, around 60% of a football field, or 150 cars parked in a square formation.
The English monarchy implemented the use of acre for area measurement in the late 1200s. In 1878, 1 hectare was defined as 4,840 square yards by the British weights and measures Act.
Also, the official measurement of an acre differed among European countries before the introduction of the metric system. At present, it is part of the US customary and imperial unit system of measurement. In India, an acre is primarily used to measure agricultural land.
Acres to Other Units Conversion
Unit |
Conversion Unit |
Result |
1 Acres |
bigha |
1.6 |
1 Acres |
cent |
100.1 |
1 Acres |
katha |
32.0 |
1 Acres |
guntha |
40 |
1 Acres |
gaj |
4840 |
Hectare to acre (ha to ac) conversion table
Hectare (Ha) |
Acre (Ac) |
Hectare to Acre Conversion |
1 Hectare |
2.4711 Acre |
1 Hectare is equal to 2.4711 Acre |
2 Hectare |
4.942 Acre |
2 Hectare is equal to 4.942 Acre |
3 Hectare |
7.413 Acre |
3 Hectare is equal to 7.413 Acre |
4 Hectare |
9.884 Acre |
4 Hectare is equal to 9.884 Acre |
5 Hectare |
12.355 Acre |
5 Hectare is equal to 12.355 Acre |
6 Hectare |
14.823 Acre |
6 Hectare is equal to 14.823 Acre |
7 Hectare |
17.297 Acre |
7 Hectare is equal to 17.297 Acre |
8 Hectare |
19.768 Acre |
8 Hectare is equal to 19.768 Acre |
9 Hectare |
22.395 Acre |
9 Hectare is equal to 22.395 Acre |
10 Hectare |
24.710 Acre |
10 Hectare is equal to 24.710 Acre |
A hectare unit is converted into an acre by multiplying the former with 2.4710. How to convert hectare to acre (ha to ac)?
For instance, to convert 13 hectares to an acre, the calculation is:
13 ha = 13 x 2.4710 or 32.1237 ac
Likewise, a unit of an acre is converted to a hectare by dividing the former with 0.404686.
For instance, 13 acres expressed in hectare are:
13 ac = 13 / 0.404686 or 5.26091 ha
Use an online area converter for hectare conversion to the acre and vice versa to ensure precise and quick computation. It is often integral when purchasing a mortgage loan in the northern parts of the country.
Other area conversions
Conversion |
Unit Symbols |
Relations |
Sq in to sq ft |
1 square inch = 0.00694 square feet |
|
Sq m to sq yd |
1 square metre = 1.19 square yard |
|
Sq m to gaj |
1 square metre = 1.2 gaj |
|
Sq ft to ac |
1 square feet = 0.000022 acre |
|
Sq m to ac |
1 square metre = 0.00024 acre |
|
Sq ft to cm |
1 square feet = 929.03 cm |
|
Ct to Sq ft |
1 cent = 435.56 square feet |
Difference between Hectare and Acre
Criteria |
Hectare (ha) |
Acre (ac) |
Definition |
A metric unit of area used worldwide, especially for large plots of land. |
A unit of area commonly used in countries like the U.S., U.K., and India. |
Size |
1 hectare = 10,000 square meters (m²). |
1 acre = 4,046.86 square meters (m²) or 43,560 square feet (ft²). |
Equivalent in Acres |
1 hectare = 2.471 acres. |
1 acre = 0.4047 hectares. |
Measurement System |
Metric system. |
Imperial system. |
Symbol |
ha |
ac |
Usage |
Widely used in agriculture, forestry, and land management. |
Commonly used in real estate, agriculture, and land transactions. |
Global Acceptance |
Accepted globally in countries using the metric system, including India. |
Primarily used in countries that follow the imperial system, like the U.S. and U.K. |
Application |
Suitable for measuring large land areas such as farms, forests, and agricultural fields. |
Suitable for various types of properties, including residential plots and agricultural land. |