A shao (Chinese: 勺; pinyin: sháo) in China, shaku in Japan and jak in Korea, is a unit of volume measurement in East Asia. One shao equals 1⁄100 sheng. It is 10 mL (millilitres) in China, 18.04 mL in Japan and 18 mL in Korea. Shao' is also a unit of area equal to 0.033 square meters (a hundredth of a tsubo) in Japan and Korea.

The Chinese word shao (勺) means a spoon, or an amount held by a spoon.

China

Volume units effective since 1930 in China
PinyinCharacterRelative valueMetric valueUS valueImperial valueNotes
cuō1⁄10001 mL0.0338 fl oz0.0352 fl ozmillilitre
sháo1⁄10010 mL0.3381 fl oz0.3520 fl ozcentilitre
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.
Sai1⁄1000⁠2401/1,331,000⁠L1.804mL⁠37,515,625/15,900,351,812,136⁠cuyd29.28min⁠240,100/605,084,579⁠gal30.47min
0.1101cuin
Shaku1⁄100⁠2401/133,100⁠L18.04mL⁠187,578,125/7,950,175,906,068⁠cuyd0.6100floz⁠2,401,000/605,084,579⁠gal0.6349floz
1.101cuin
1⁄10⁠2401/13,310⁠L180.4mL⁠937,890,625/3,975,087,953,034⁠cuyd0.3812pt⁠24,010,000/605,084,579⁠gal0.3174pt
0.3276drypt
Shō1⁠2401/1331⁠L1.804L⁠4,689,453,125/1,987,543,976,517⁠cuyd1.906qt⁠240,100,000/605,084,579⁠gal1.587qt
1.638dryqt
To10⁠24,010/1331⁠L18.04L⁠46,894,531,250/1,987,543,976,517⁠cuyd4.765gal⁠2,401,000,000/605,084,579⁠gal3.968gal
2.048pk
Koku100⁠240,100/1331⁠L180.4L⁠468,945,312,500/1,987,543,976,517⁠cuyd47.65gal⁠24,010,000,000/605,084,579⁠gal39.680gal
5.119bu
Notes: Approximations are rounded to four significant figures.

Area

Shao' is also a unit of area equal to 0.033 square meters (a hundredth of a tsubo) in Japan.

Area units in Japan
UnitTsuboMetricUS & Imperial
RomanizedKanjiExactApprox.ExactApprox.
Shaku1⁄100⁠4/121⁠m2330.6cm2⁠6,250,000/158,080,329⁠sqyd51.24sqin
1⁄10⁠40/121⁠m20.3306m2⁠62,500,000/158,080,329⁠sqyd3.558sqft
畳 or 帖1⁄2⁠200/121⁠m21.653m2⁠312,500,000/158,080,329⁠sqyd17.79sqft
Tsubo1⁠400/121⁠m23.306m2⁠625,000,000/158,080,329⁠sqyd35.58sqft
Bu
Se30⁠12,000/121⁠m299.17m2⁠6,250,000,000/52,693,443⁠sqyd1,067sqft
Tan段 or 反300⁠120,000/121⁠m2991.7m2⁠62,500,000,000/52,693,443⁠sqyd10,674.6sqft
Chō(bu)町(歩)3000⁠1,200,000/121⁠m20.9917ha⁠625,000,000,000/52,693,443⁠sqyd2.4505acres
Notes: Approximations are rounded to four significant figures.

Korea

Volume units in Korea
RomanizationKoreanEnglishEquivalents
RRMROtherDoeOther countriesGlobal
JakChak()1⁄10018 mL (0.63 imp fl oz; 0.61 US fl oz)
HopHop1⁄10Ge180 mL (6.3 imp fl oz; 6.1 US fl oz)
DoeToeDoi DweKorean Peck11.8 L (0.40 imp gal; 0.48 US gal)
SeungSŭng승(升)
MalMalKorean Bushel1018 L (4.0 imp gal; 4.8 US gal)
DuTu두(斗)
SeomSŏmKorean Picul100Picul180 L (40 imp gal; 48 US gal)
SeokSŏkSuk석(石)
JeomChŏm점(苫)
SogokSogok소곡(小斛)150270 L (59 imp gal; 71 US gal)
PyeongseokP'yŏngsŏk평석(平石)
DaegokTaegok대곡(大斛)200360 L (79 imp gal; 95 US gal)
JeonseokChŏnsŏk전석(全石)

The Korean Jak (勺) can also be a unit of area, equaling 0.0330579 m2 (0.355832 sq ft.)

For more details on volume measurement, please see Sheng (volume)

See also

Notes

External links