hectare
Sign in to savethumb|Image comparing the hectare (the small blue area at lower left) to other units. The entire yellow square is one square mile. The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, 10,000 square metres (10,000 m2), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and thus one hectare is about . thumb|St. Enda's GAA ground, in Omagh. The playing field used in [[Gaelic football and hurling is a little over a hectare in size.]] In 1795, when the metric syste
AI overview
A hectare is a metric unit of area equal to 10,000 square meters (roughly the size of a soccer field), primarily used to measure land. It matters because it's the standard way to quantify large land areas like farms, forests, and properties across most of the world.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Unit.name
- hectare
- Unit.image
- Illustration of One Hectare.svg
- Unit.caption
- A visualisation of one hectare
- Unit.standard
- Non-SI units mentioned in the SI
- Unit.quantity
- Area
- Unit.symbol
- ha
- Unit.units1
- SI base units:
- Unit.inunits1
- 104 m2
- Unit.units2
- Imperial and US customary units
via Wikipedia infobox
Article
13 sectionsContents
- Description
- History
- Unit family
- Decimilliare
- Centiare
- Deciare
- Are
- Decare
- Conversions
- Unicode
- See also
- References
- External links
thumb|Image comparing the hectare (the small blue area at lower left) to other units. The entire yellow square is one square mile. The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, 10,000 square metres (10,000 m2), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and thus one hectare is about . thumb|St. Enda's GAA ground, in Omagh. The playing field used in [[Gaelic football and hurling is a little over a hectare in size.]] In 1795, when the metric system was introduced, the are was defined as 100 square metres, or one square decametre, and the hectare ("hecto-" + "are") was thus 100 ares or km2 ( square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the are was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa () and are (100 m2) are not officially "accepted for use", they are still used in some contexts.
== Description ==