In Japan, ? – 20ᵗʰ century, a unit of length = 6 shaku, approximately 1.818... meters (that is, exactly ²⁰⁄₁₁ meters), about 1.99 yards. link to a table showing relationships between Japanese units of length It is the distance between support poles in traditional homes, and the length of a tatami mat.

United Nations, 1966.


In Thailand, a unit of length used only for measuring cloth, since the standardization of 1923 = 1 meter. link to a table showing relationships between Thai units of length Before 1923, 1 ken = 40 inches (about 1.01598 meter).


Deux Sok valent un ken, c'est à dire une coudée, depuis le bout des doits jusqu'au milieu de la poitrine.

Two sok make a ken, which is to say a cubit, from the tips of the fingers to the middle of the chest.

[Simon] de La Loubere.
Du Royaume de Siam. Tome Second.
Amsterdam: Abraham Wolfgang, 1691.
Page 47.

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