1 E4 m
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Categories: Orders of magnitude (length)
To help compare different orders of magnitude this page lists lengths between 10 and 100 km (104 to 105 m).
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Conversions
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
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Sports
- 42 km — length of a marathon course
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Human-built structures
- 18 km — cruising altitude of Concorde
- 38 km — Length of the world's longest bridge, the Second Lake Pontchartrain Causeway in Louisiana, USA
- 39 km — undersea portion of the Channel tunnel
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Nature
- 10 km — Height of Mauna Kea in Hawaii, measured from its base on the ocean floor
- 11 km — deepest known point of the ocean, Challenger Deep in the Mariana Trench
- 21 km — length of Manhattan
- 34 km — Narrowest width of the English Channel
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Astronomical
- 13 km — mean diameter of Deimos, the smaller moon of Mars
- 20 km — diameter of Leda, one of Jupiter's moons
- 20 km — diameter of Pan, one of Saturn's moons
- 27 km — Height of Olympus Mons on Mars, measured from its base
- 43 km — diameter difference of Earth's equatorial bulge
- 66 km — diameter of Naiad, the innermost of Neptune's moons
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