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1 Myriametre

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Title: 1 Myriametre  
Author: World Heritage Encyclopedia
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Subject: Orders of magnitude (length), 10 picometres, 100 zettametres, 1 nanometre, 100 petametres
Collection: Orders of Magnitude (Length)
Publisher: World Heritage Encyclopedia

1 Myriametre

A clickable mosaic of objects
at scales within direct human experience, from the micrometric (106 m, top left) to the multi-kilometric (105 m, bottom right).
The Strait of Gibraltar is 13 kilometres wide

To help compare different orders of magnitude this page lists lengths between 10 and 100 kilometres (104 to 105 metres). The myriametre (sometimes also spelled myriameter, myriometre and myriometer) (10,000 metres) is a deprecated unit name; the decimal metric prefix myria- (sometimes also written as myrio-) is obsolete and not included among the prefixes when the International System of Units was introduced in 1960.

Distances shorter than 10 kilometres


  • Conversions 1
  • Sports 2
  • Human-defined scales and structures 3
  • Geographical 4
  • Astronomical 5
  • Notes 6
  • References 7


10 kilometres is equal to:


  • 42.195 km[note 1] — length of the marathon[2]

Human-defined scales and structures



  • 10 km — diameter of the most massive neutron stars (3 – 5 solar masses)
  • 13 km — mean diameter of Deimos, the smaller moon of Mars
  • 20 km — diameter of the least massive neutron stars (1.44 solar masses)
  • 20 km — diameter of Leda, one of Jupiter's moons
  • 20 km — diameter of Pan, one of Saturn's moons
  • 22 km — diameter of Phobos, the larger moon of Mars
  • 27 km — height of Olympus Mons above the Mars reference level,[5][6] the highest known mountain of the Solar System
  • 43 km — diameter difference of Earth's equatorial bulge
  • 66 km — diameter of Naiad, the innermost of Neptune's moons

Distances longer than 100 kilometres


  1. ^ km is an abbreviation of kilometre


  1. ^ Haugen, Einar, Norwegian English Dictionary, 1965, Oslo: Universitetsforlaget and Madison: University of Wisconsin Press, s.v. mil
  2. ^
  3. ^
  4. ^
  5. ^ Highest and lowest points on Mars NASA
  6. ^
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