Hectare

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Hectare

A hectare (symbol ha, ) is a unit of area equal to , or one square hectometre

Hectometre

A hectometre is a somewhat uncommonly used Units of measurement of length in the metric system, equal to one hundred metres. It derives from the Greek language word "ekato", meaning "hundred"....
(100 metres, squared), and commonly used for measuring land area

Surveying

Surveying or land surveying is the technique and science of accurately determining the terrestrial or three-dimensional space position of points and the distances and angles between them....
.

The hectare is used in most countries around the world, especially in domains concerned with land ownership, land planning, and management

Land management

Land management can be defined as the process of management the use and development of Land resources in a Sustainable development way. Land resources are used for a variety of purposes which interact and may compete with one another; therefore, it is desirable to plan and manage all uses in an integrated manner....
, including law (land deeds

Deed

A deed is a legal instrument used to grant a right. Deeds are part of the broader category of documents under seal. Deeds can be described as contract-like, as they require the mutual agreement of more than one person....
), agriculture

Agriculture

Agriculture refers to the production of food and goods through farming and forestry. Agriculture was the key development that led to the rise of civilization, with the animal husbandry of domestication animals and plants creating food surpluses that enabled the development of more Population density and Social stratification societies....
, forestry

Forestry

Forestry is the art and science of managing forests, tree plantations, and related natural resources. Silviculture, a related science, involves the growing and tending of trees and forests....
, and town planning.

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Comparison of Area units
non-SI comparisons
Unit	SI	SI base
1 ca	1 m²	1 m²
1 a	1 dam²	10² m²
1 ha	1 hm²	10⁴ m²
100 ha	1 km²	10⁶ m²
non-SI	metric	SI base
0.00386102 sq mi	1 ha	10⁴ m²
2.471 acre	1 ha	10⁴ m²
107,639 sq ft	1 ha	10⁴ m²

A hectare (symbol ha, ) is a unit of area equal to , or one square hectometre

Hectometre

Surveying

Land management

Deed

Agriculture

Forestry

United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
, Myanmar

Myanmar

Burma, officially the Union of Myanmar, is the largest country by geographical area in mainland Southeast Asia, or Indochina. The country is bordered by the People's Republic of China on the northeast, Laos on the east, Thailand on the southeast, Bangladesh on the west, India on the northwest, and the Bay of Bengal to the southwest with...
, and to some extent Canada

Canada

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....
use the Imperial measurement acre

Acre

The acre is a Units of measurement of area in a number of different systems, including the Imperial unit#Measures of area and United States customary units#Units of area systems....
, equal to , or x 1/4 mile, which is 0.404686 ha. Some of the former Ottoman

Ottoman Empire

The Ottoman Empire , also known by its contemporaries as the Turkish Empire or Turkey , was an empire that lasted from 1299?1923. It was Treaty of Lausanne by the Republic of Turkey, which was officially proclaimed on October 29, 1923....
countries, and Norway

Norway

Norway , officially the Kingdom of Norway, is a constitutional monarchy in Northern Europe that occupies the western portion of the Scandinavian Peninsula....
, use the decare

Decare

The decare is a unit for the measurement of area, generally used for land area. One decare is the same as 10 ares, which is the same as 1000 square metres....
, one tenth of a hectare.

Its base unit, the are

Are

Are is a unit of area, equal to 100 square metres , used for measuring land area. It was defined by older forms of the metric system, but is now outside of the modern SI ....
, was defined by older forms of the metric system

Metric system

The metric system is an international decimalised systems of measurement, founded by France in 1791, that is the common system of Unit of measurement used by most of the world....
, but is no longer part of the modern metric system. The Comité International des Poids et Mesures classifies the hectare as a unit that is accepted for use with SI

Si, si, or SI may refer to :...
.

Conversions

One hectare is equivalent to:

Metric

10,000 square metre
Square metre

The square metre is the SI derived unit of area, with symbol m?. It is defined as the area of a square whose sides measure exactly one metre....
s
0.01 square kilometre
Square kilometre

Square kilometre , symbol km2, is a decimal multiple of the SI Units of measurement of surface area, the square metre, one of the SI derived units....
1 square hectometre = 100 metres × 100 metres (a square with sides 100 metres long)
10 decare
Decare

The decare is a unit for the measurement of area, generally used for land area. One decare is the same as 10 ares, which is the same as 1000 square metres....
s
100 are
Are

Are is a unit of area, equal to 100 square metres , used for measuring land area. It was defined by older forms of the metric system, but is now outside of the modern SI ....
s
10,000 centiare
Centiare

A centiare is a unit of area, equal to 1 square meter, used in some countries for measuring small land areas, usually in combination with ares, e.g. 1a 16ca = 116 m?....
s

Imperial units

2.4710538 international acre
Acre

The acre is a Units of measurement of area in a number of different systems, including the Imperial unit#Measures of area and United States customary units#Units of area systems....
s
2.4710439 U.S. survey acre
Acre

The acre is a Units of measurement of area in a number of different systems, including the Imperial unit#Measures of area and United States customary units#Units of area systems....
s
107,639 square feet
Square foot

The square foot is an imperial unit / U.S. customary unit of area, used mainly in the United States and United Kingdom. It is defined as the area of a Square with sides of 1 foot in length....
0.00386102 square miles (statute)

Other

15 mu
Chinese units of measurement

File:Classicchineseinstrumentscale.jpgChinese units of measurement are the customary and traditional Units of measurements of measure used in the People's Republic of China....
(Chinese)
0.15 qing
Chinese units of measurement

File:Classicchineseinstrumentscale.jpgChinese units of measurement are the customary and traditional Units of measurements of measure used in the People's Republic of China....
10 dunam
Dunam

A dunam or d?n?m, dunum, donum is a Units of measurement of area used in the Ottoman Empire and still used, in various standardized versions, in many countries formerly part of the Ottoman Empire....
or dönüm (Middle East)
10 stremma
Stremma

The stremma is a Greece unit of land area, equal to 1,000 square metres, also called the 'royal' stremma. The name comes from a root meaning 'to turn', presumably referring to the amount of land that can be plowed/turned in a day....
ta (Greece)
6.25 rai (Thai)
˜ 1.008 cho
Japanese units of measurement

is the traditional Japanese Systems of measurement. The name shakkanho originates from the name of two of the Units of measurement, the shaku, a unit of length, and the kan, a mass measurement....
(Japanese)
7.47 [bigha]] (Bangladesh, India, Nepal)

Side information: A hectare is a square that's 100 meters by 100 meters (10,000 square meters), or a square 300 feet by 300 feet (90,000 square feet). In U.S. acres, a hectare is 2.47 acres.

Hectare

Conversions

Metric

Imperial units

Other

See also

External links