A Cuo (Chinese: 撮; pinyin: cuō) in China or sai in Japan is a unit of volume measurement. One cuo equals 1⁄1000 sheng. It is 1 mL (millilitres) in China and 1.804 mL in Japan.

The word cuo (撮) means (a) to pick up (e.g., salt) using one's fingertips, or (b) the small amount of something that can be picked up in this way.

China

Volume units effective since 1930 in China
PinyinCharacterRelative valueMetric valueUS valueImperial valueNotes
cuō撮1⁄10001 mL0.0338 fl oz0.0352 fl ozmillilitre
sháo勺1⁄10010 mL0.3381 fl oz0.3520 fl ozcentilitre
gě合1⁄10100 mL3.381 fl oz3.520 fl ozdecilitre
shēng市升11 L2.113 pt1.760 ptlitre
dǒu市斗1010 L21.13 pt 2.64 gal17.60 pt 2.20 galdecalitre
dàn市石100100 L26.41 gal22.0 galhectolitre

Japan

Volume

Volume units in Japan
UnitShōMetricUSImperial
RomanizedKanjiExactApprox.ExactApprox.ExactApprox.
Sai才1⁄1000⁠2401/1,331,000⁠L1.804mL⁠37,515,625/15,900,351,812,136⁠cuyd29.28min⁠240,100/605,084,579⁠gal30.47min
0.1101cuin
Shaku勺1⁄100⁠2401/133,100⁠L18.04mL⁠187,578,125/7,950,175,906,068⁠cuyd0.6100floz⁠2,401,000/605,084,579⁠gal0.6349floz
1.101cuin
Gō合1⁄10⁠2401/13,310⁠L180.4mL⁠937,890,625/3,975,087,953,034⁠cuyd0.3812pt⁠24,010,000/605,084,579⁠gal0.3174pt
0.3276drypt
Shō升1⁠2401/1331⁠L1.804L⁠4,689,453,125/1,987,543,976,517⁠cuyd1.906qt⁠240,100,000/605,084,579⁠gal1.587qt
1.638dryqt
To斗10⁠24,010/1331⁠L18.04L⁠46,894,531,250/1,987,543,976,517⁠cuyd4.765gal⁠2,401,000,000/605,084,579⁠gal3.968gal
2.048pk
Koku石100⁠240,100/1331⁠L180.4L⁠468,945,312,500/1,987,543,976,517⁠cuyd47.65gal⁠24,010,000,000/605,084,579⁠gal39.680gal
5.119bu
Notes: Approximations are rounded to four significant figures.

For more details, please see Sheng (volume)

See also