1 E4 m
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To help compare different orders of magnitude this page lists lengths between 10 and 100 km (104 to 105 m).
- Distances shorter than 10 km
- 10 km is equal to:
- 10.2 km — Height of Mauna Kea in Hawaii, measured from its base on the ocean floor
- 11.034 km — deepest known point of the ocean, Challenger Deep in the Mariana Trench
- 13 km — mean diameter of Deimos, the smaller moon of Mars
- 16 km — diameter of Adrastea, one of Jupiter's inner moons
- 16.09344 km — 10 miles
- 18 km — cruising altitude of Concorde
- 20 km — diameter of Leda, one of Jupiter's moons
- 20 km — diameter of Pan, one of Saturn's moons
- 21 km — length of Manhattan
- 22 km — mean diameter of Phobos, the larger moon of Mars
- 27 km — Height of Olympus Mons on Mars, measured from its base
- 30 km — diameter of Ananke, one of Jupiter's outer moons
- 32 km — diameter of Siarnaq, one of Saturn's outer moons
- 34 km — Narrowest width of the English Channel
- 36 km — diameter of Lysithea, one of Jupiter's moons
- 38.422 km — Length of the world's longest bridge, the Second Lake Pontchartrain Causeway in Louisiana, USA
- 39 km — undersea portion of the Channel tunnel
- 42.195 km — length of a marathon course
- 43 km — diameter difference of Earth's equatorial bulge
- 43 km — diameter of Metis, Jupiter's innermost moon
- 46 km — diameter of Carme, one of Jupiter's outer moons
- 60 km — diameter of Pasiphaë, one of Jupiter's outer moons
- 66 km — diameter of Naiad, the innermost of Neptune's moons
- 86 km — diameter of Elara, one of Jupiter's moons
- 99 km — diameter of Thebe, one of Jupiter's inner moons
- Distances longer than 100 km