Dou (), called to in Japan, du in Korea, and đấu in Vietnam and sometimes translated as a scoop or ladle, is a traditional unit of volume in East Asia. It originated in China and later spread to other places. One dou equals 10 sheng or 1/10 dan, now officially 10 liters in China, 18.039 liters in Japan and 18 liters in Korea.
Dou is one of the traditional Chinese units of measurement used to measure cereal grains, among other things.
China
+ Table of Chinese volume units effective since 1930PinyinCharacterRelative valueMetric valueUS valueImperial valueNotescuō1 mL0.0338 fl oz0.0352 fl ozmillilitresháo10 mL0.3381 fl oz0.3520 fl ozcentilitregě100 mL3.381 fl oz3.520 fl ozdecilitreshēng11 L2.113 pt1.760 ptlitredǒu1010 L21.13 pt2.64 gal17.60 pt2.20 galdecalitredàn100100 L26.41 gal22.0 galhectolitre
Japan
+ Table of volume units in JapanIwata, Shigeo. "Weights and Measures in Japan"UnitShōMetricUSImperialRomanizedKanjiExactApprox.ExactApprox.ExactApprox. Sai L 1.804mL cuyd 29.28min gal 30.47min 0.1101cuin Shaku L 18.04mL cuyd 0.6100floz gal 0.6349floz 1.101cuin Gō L 180.4mL cuyd 0.3812pt gal 0.3174pt 0.3276drypt Shō 1 L 1.804L cuyd 1.906qt gal 1.587qt 1.638dryqt To 10 L 18.04L cuyd 4.765gal gal 3.968gal 2.048pk Koku 100 L 180.4L cuyd 47.65gal gal 39.680gal 5.119buNotes: Approximations are rounded to four significant figures.
Korea
+ Table of volume units in Korea RomanizationKoreanEnglishEquivalentsRRMROtherDoeOther countriesGlobalJakChak()HopHopGeDoeToeDoiDweKorean Peck1SeungSŭng()MalMalKorean Bushel10DuTu()SeomSŏmKorean Picul100PiculSeokSŏkSuk()JeomChŏm()SogokSogok()150PyeongseokP'yŏngsŏk()DaegokTaegok()200JeonseokChŏnsŏk()
For more details, please see Sheng (volume)
Words 斗室 (dǒu shì) 車載斗量 (chē zài dǒu liàng) 不為五斗米折腰 (bù wèi wǔ dǒu mǐ zhéyāo)
See also Chinese units of measurement Japanese units of measurement Korean units of measurement :zh:中國度量衡
Notes
References