Shao (unit)
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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
| Pinyin | Character | Relative value | Metric value | US value | Imperial value | Notes |
|---|---|---|---|---|---|---|
| cuō | 撮 | 1⁄1000 | 1 mL | 0.0338 fl oz | 0.0352 fl oz | millilitre |
| sháo | 勺 | 1⁄100 | 10 mL | 0.3381 fl oz | 0.3520 fl oz | centilitre |
| gě | 合 | 1⁄10 | 100 mL | 3.381 fl oz | 3.520 fl oz | decilitre |
| shēng | 市升 | 1 | 1 L | 2.113 pt | 1.760 pt | litre |
| dǒu | 市斗 | 10 | 10 L | 21.13 pt 2.64 gal | 17.60 pt 2.20 gal | decalitre |
| dàn | 市石 | 100 | 100 L | 26.41 gal | 22.0 gal | hectolitre |
Japan
Volume
| Unit | Shō | Metric | US | Imperial | ||||
|---|---|---|---|---|---|---|---|---|
| Romanized | Kanji | Exact | Approx. | Exact | Approx. | Exact | Approx. | |
| Sai | 才 | 1⁄1000 | 2401/1,331,000L | 1.804mL | 37,515,625/15,900,351,812,136cuyd | 29.28min | 240,100/605,084,579gal | 30.47min |
| 0.1101cuin | ||||||||
| Shaku | 勺 | 1⁄100 | 2401/133,100L | 18.04mL | 187,578,125/7,950,175,906,068cuyd | 0.6100floz | 2,401,000/605,084,579gal | 0.6349floz |
| 1.101cuin | ||||||||
| Gō | 合 | 1⁄10 | 2401/13,310L | 180.4mL | 937,890,625/3,975,087,953,034cuyd | 0.3812pt | 24,010,000/605,084,579gal | 0.3174pt |
| 0.3276drypt | ||||||||
| Shō | 升 | 1 | 2401/1331L | 1.804L | 4,689,453,125/1,987,543,976,517cuyd | 1.906qt | 240,100,000/605,084,579gal | 1.587qt |
| 1.638dryqt | ||||||||
| To | 斗 | 10 | 24,010/1331L | 18.04L | 46,894,531,250/1,987,543,976,517cuyd | 4.765gal | 2,401,000,000/605,084,579gal | 3.968gal |
| 2.048pk | ||||||||
| Koku | 石 | 100 | 240,100/1331L | 180.4L | 468,945,312,500/1,987,543,976,517cuyd | 47.65gal | 24,010,000,000/605,084,579gal | 39.680gal |
| 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.
| Unit | Tsubo | Metric | US & Imperial | |||
|---|---|---|---|---|---|---|
| Romanized | Kanji | Exact | Approx. | Exact | Approx. | |
| Shaku | 勺 | 1⁄100 | 4/121m2 | 330.6cm2 | 6,250,000/158,080,329sqyd | 51.24sqin |
| Gō | 合 | 1⁄10 | 40/121m2 | 0.3306m2 | 62,500,000/158,080,329sqyd | 3.558sqft |
| Jō | 畳 or 帖 | 1⁄2 | 200/121m2 | 1.653m2 | 312,500,000/158,080,329sqyd | 17.79sqft |
| Tsubo | 坪 | 1 | 400/121m2 | 3.306m2 | 625,000,000/158,080,329sqyd | 35.58sqft |
| Bu | 歩 | |||||
| Se | 畝 | 30 | 12,000/121m2 | 99.17m2 | 6,250,000,000/52,693,443sqyd | 1,067sqft |
| Tan | 段 or 反 | 300 | 120,000/121m2 | 991.7m2 | 62,500,000,000/52,693,443sqyd | 10,674.6sqft |
| Chō(bu) | 町(歩) | 3000 | 1,200,000/121m2 | 0.9917ha | 625,000,000,000/52,693,443sqyd | 2.4505acres |
| Notes: Approximations are rounded to four significant figures. |
Korea
| Romanization | Korean | English | Equivalents | ||||
|---|---|---|---|---|---|---|---|
| RR | MR | Other | Doe | Other countries | Global | ||
| Jak | Chak | 작(勺) | 1⁄100 | 18 mL (0.63 imp fl oz; 0.61 US fl oz) | |||
| Hop | Hop | 홉 | 1⁄10 | Ge | 180 mL (6.3 imp fl oz; 6.1 US fl oz) | ||
| Doe | Toe | Doi Dwe | 되 | Korean Peck | 1 | 1.8 L (0.40 imp gal; 0.48 US gal) | |
| Seung | Sŭng | 승(升) | |||||
| Mal | Mal | 말 | Korean Bushel | 10 | 18 L (4.0 imp gal; 4.8 US gal) | ||
| Du | Tu | 두(斗) | |||||
| Seom | Sŏm | 섬 | Korean Picul | 100 | Picul | 180 L (40 imp gal; 48 US gal) | |
| Seok | Sŏk | Suk | 석(石) | ||||
| Jeom | Chŏm | 점(苫) | |||||
| Sogok | Sogok | 소곡(小斛) | 150 | 270 L (59 imp gal; 71 US gal) | |||
| Pyeongseok | P'yŏngsŏk | 평석(平石) | |||||
| Daegok | Taegok | 대곡(大斛) | 200 | 360 L (79 imp gal; 95 US gal) | |||
| Jeonseok | Chŏnsŏk | 전석(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)