Hiro (Japanese measure of length)

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Hiro was a Japanese measure of length and was used to measure depth in seafaring. The measure was considered a fathom .

1 Hiro ( Japanese 尋 ) = 6 Shaku ( 尺 ) (Japanese feet ) = 1.818 meters
occasionally also: 1 hiro = 5 shaku = 1,515 meters

literature

Helmut Kahnt, Bernd Knorr: Old measures, coins and weights. A lexicon. Bibliographisches Institut, Mannheim et al. 1987, ISBN 3-411-02148-9 , p. 123.