Cran (unit)

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A cran, in use from at least as early as the 18th century, was a unit of measure of landed uncleaned herring used in the North Sea fishing industry. In 1852 it was defined to be the equivalent of one standard box of about 37.5 imperial gallons - typically around 1200 fish, but varying anywhere between 700 and 2,500. In metric units it is about 170.5 liters.[1][2]


  1. ^ "cran".
  2. ^ Cardarelli, François - Encyclopedia of Scientific Units, Weights & Measures (Springer .2003 ISBN 1-85233-682-X)