Rai (unit)
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(Redirected from Rai (area))
A rai (Thai: ไร่ [râj]) is a unit of area, equal to 1 square sen (เส้น) or 1,600 square metres (40 m × 40 m), and is used in measuring land area for a cadastre or cadastral map.[note 1] 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 rai equals 4 ngaan (Thai: งาน [ŋāːn]) or 400 tarangwa (Thai: ตารางวา [tāː.rāːŋ wāː]) aka square wa. The rai equals 0.3954 acres.
It is commonly used in Thailand and equals 16 ares, another unit that is based on the metre and commonly used in several countries. Although recognized by the SI, its use is not encouraged. The word also means plantation.
Contents
See also
References
- Lua error in package.lua at line 80: module 'strict' not found. (which uses the name 'waa' instead of 'dtaaraangwaa' for the 'square waa')
- Lua error in package.lua at line 80: module 'strict' not found. (with spelling variants 'wah' and 'tara[a]ng wah' for 'waa' and 'dtaaraangwaa')
Notes
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
See also
- 1 E+3 m² for a comparison with other areas
- Area metric conversion, British and U.S., Japanese, Chinese, Thai, old French, old Spanish, old Russian, etc.
