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To help compare different orders of magnitude this page lists lengths between 10 and 100 km (104 to 105 m). See also lengths of other orders of magnitude. Distances shorter than 10 km 10 km is equal to: 10,000 metres 6.2 miles 1 mil, unit of measure commonly used in Norway and Sweden 1 farsang, unit of measure commonly used in Iran and Turkey 10.924 km -- deepest known point of the ocean, Challenger Deep in the Marianas Trench. 18 km -- cruising altitude of Concorde 21 km -- length of Manhattan 34 km -- Narrowest width of the English Channel 39 km -- undersea portion of the Channel tunnel 42.195 km -- length of a marathon track 43 km -- diameter difference of Earth's equatorial bulge Distances longer than 100 km See also: conversion of units External link Conversion Calculator for Units of LENGTH (http://www.ex.ac.uk/cimt/dictunit/ccleng.htm)
See also: conversion of units