Thailand
Weights and Measures

Please note! All of the names below are romanizations of the actual Thai words, which of course are written in the non-Roman Thai alphabet. Different romanizations of each of these words exist.

Length

Chart of relationships

Jod

Kabiet

Ken

Keup

Khaphăjŭt

Niu

Roeneng

Sauk

Sen

Wah

Yot

Area

Fua

Khanat

Rai

Ngan

Mass/Weight

Chart of relationships

Catty

Chang

Fuang

Hun

Klam

Klom

Picul

Salung

Tamlung

Tical

Capacity

Chart of relationships

Ban

Katik

Kwien, see also coyan

Sat

Tanan

Specialized

Jok (sawn wood)

Landmarks, major legislation, etc.

1391: “Siam applied for the standard weights and measures of China, which were granted.”

John Bowring.
The Kingdom and People of Siam. Vol. 1.
London: 1857. Page 73.

1403: “Siam sent to thank his Majesty, and to pray again for the standard weights and measures of China. The Emperor sent these.”

Bowring, page 74.

1876: The national prototypes of Siamese units are sent to London and compared with the British standards by the British Board of Trade.

1912: Adopts metric system.

1923:

1999: Most recent Weights and Measures Act. Metric, but confirms metric values for certain traditional units.

resources

A fine website, except that it is not secure:

www.thai-language.com

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