Ngaan
Encyclopedia
A ngan is a unit of area
, equal to 400 square metre
s (20 m × 20 m), used for measuring land or property area. Its current size is precisely derived from the metre
, but is neither part of nor recognized by the modern metric system
, the International System
(SI).
The ngan equals 1/4 rai
or 100 tarangwa
aka square wa, very nearly 1/10 of an acre
. Ngan also means work.
It is commonly used in Thailand
and equals 4 are, another unit based on the metre and as commonly used in several countries recognized though not encouraged by the SI.
As for many terms normally written in Thai alphabet
, transliteration into English language caused a spelling variant, ngaan.
Area
Area is a quantity that expresses the extent of a two-dimensional surface or shape in the plane. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint necessary to cover the surface with a single coat...
, equal to 400 square metre
Square metre
The square metre or square meter is the SI derived unit of area, with symbol m2 . It is defined as the area of a square whose sides measure exactly one metre...
s (20 m × 20 m), used for measuring land or property area. Its current size is precisely derived from the metre
Metre
The metre , symbol m, is the base unit of length in the International System of Units . Originally intended to be one ten-millionth of the distance from the Earth's equator to the North Pole , its definition has been periodically refined to reflect growing knowledge of metrology...
, but is neither part of nor recognized by the modern metric system
Metric system
The metric system is an international decimalised system of measurement. France was first to adopt a metric system, in 1799, and a metric system is now the official system of measurement, used in almost every country in the world...
, the International System
Si
Si, si, or SI may refer to :- Measurement, mathematics and science :* International System of Units , the modern international standard version of the metric system...
(SI).
The ngan equals 1/4 rai
Rai (area)
A rai is a unit of area, equal to 1,600 square metres , used for measuring land area. Its current size is precisely derived from the metre, but is neither part of nor recognized by the modern metric system, the International System ....
or 100 tarangwa
Tarangwa
A tarang wa or square wa, sometimes transliterated as 'waa' or 'wah' is a unit of area used in Thailand for measuring land or property. It is defined as the area of a square whose sides measure exactly one wa , equivalent to four square metres...
aka square wa, very nearly 1/10 of an acre
Acre
The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. The most commonly used acres today are the international acre and, in the United States, the survey acre. The most common use of the acre is to measure tracts of land.The acre is related...
. Ngan also means work.
It is commonly used in Thailand
Thailand
Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...
and equals 4 are, another unit based on the metre and as commonly used in several countries recognized though not encouraged by the SI.
As for many terms normally written in Thai alphabet
Thai alphabet
Thai script , is used to write the Thai language and other, minority, languages in Thailand. It has forty-four consonants , fifteen vowel symbols that combine into at least twenty-eight vowel forms, and four tone marks ....
, transliteration into English language caused a spelling variant, ngaan.