Koku, Mass

A koku (石, koku?) is a unit of volume in Japan, equal to ten cubic shaku. Approximately 3.6 koku equal one cubic metre. The koku was originally defined as quantity of rice, historically defined as enough rice to feed one person for one year. In 1891 it was defined such that one koku equalled exactly 240100/1331 litres, this is approximately 180.39 litres, or about 5 bushels (40 Imperial or 48 US gallons). Read more >>

I want to convert:

Metric

Ton
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Kilonewton
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Kilogram
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Hectogram
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Gram
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Carat
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Centigram
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Milligram
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Microgram
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Nanogram
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Atomic mass unit
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Avoirdupois (U.S.)

Long ton
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Short ton
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Long hundredweight
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Short hundredweight
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Stone
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Pound
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Ounce
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Dram
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Grain
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Troy

Pound
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Ounce
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Pennyweight
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Carat
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Grain
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Mite
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Doite
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Japanese

Koku
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Kann
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Kinn
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Monnme
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Chinese

Tael
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Ku ping
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Old Swedish

Skeppspund
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Lispund
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Skålpund
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Mark
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Uns
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Lod
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In the physical sciences, weight is the downward force exerted on matter as a result of gravity. An object's weight is equal to its mass multiplied by the magnitude of the gravitational field. The word entered Old English sometime around the 9th century, and meant the quantity measured with a balance. The word "weight" is commonly used synonymously with "mass", though the two concepts are technically quite distinct. Read more >>