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International Nautical Measure
The international nautical mile was defined by the First International Extraordinary Hydrographic Conference, Monaco in 1929. This is the only definition in widespread current use, and is the one accepted by the International Bureau of Weights and Measures. Before 1929 different countries had different definitions, and the Soviet Union, the United Kingdom and the United States did not immediately accept the international value.
Units:
nautical league
(naut.leag)
/
nautical mile
(naut.mi)
/
cable length
(cbl)
/
fathom
(fath)