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Category: area Conversion: Rais to Square Kilometers The base unit for area is square meters (Non-SI/Derived Unit) [Rais] symbol/abbrevation: (ไร่) [Square Kilometers] symbol/abbrevation: (km2, sq km)
How to convert Rais to Square Kilometers (ไร่ to km2, sq km)? 1 ไร่ = 0.0016 km2, sq km. 143000 x 0.0016 km2, sq km = 228.8 Square Kilometers. Always check the results; rounding errors may occur.
Definition:
A rai (Thai: ไร่) is a unit of area, equal to 1 square sen (เส้น) or 1,600 square meters (40m × 40m), and is used in measuring land area for a cadastre or cadastral map. Its cur..more definition+
In relation to the base unit of [area] => (square meters), 1 Rais (ไร่) is equal to 1600 square-meters, while 1 Square Kilometers (km2, sq km) = 1000000 square-meters.