To help compare orders of magnitude; this page lists lengths between 100 and 1,000 km (10⁵ and 10⁶ m).

• Distances shorter than 100 km
• 100 km is equal to:
  • 62 miles
  • side of square with area 10,000 km²
  • radius of circle with area 31,416 km²
• 100 km — the altitude at which the FAI defines spaceflight to begin
• 108 km — length of the Channel Tunnel Rail Link
• 119 km — diameter of the asteroid 5 Astraea
• 130 km — range of a Scud-A missile
• 136 km — diameter of the asteroid 8 Flora
• 162 km — diameter of Puck, the largest of Uranus' inner moons
• 167 km — diameter of Amalthea, one of Jupiter's inner moons
• 170 km — diameter of Himalia, one of Jupiter's moons
• 178 km — diameter of Janus, one of Saturn's moons
• 185 km — diameter of the asteroid 6 Hebe
• 190 km — diameter of Sycorax, the largest of Uranus' outer moons
• 200 km — diameter of the asteroids 7 Iris and 9 Metis
• 203 km — length of Sognefjorden, Norway, the largest fjord in the world
• 213 km — length of Paris metro
• 217 km — length of the Grand Union Canal
• 220 km — diameter of Phoebe, the largest of Saturn's outer moons
• 223 km — length of the Madrid Metro
• 234 km — diameter of the asteroid 3 Juno
• 240 km — widest width of the English Channel
• 266 km — mean diameter of Hyperion, one of Saturn's major moons
• 300 km — range of a Scud-B missile
• 340 km — diameter of Nereid, the third largest moon of Neptune
• 350 km — lower bound of Low Earth orbit
• 386 km — altitude of the International Space Station
• 397 km — diameter of Mimas, one of Saturn's moons
• 407 km — diameter of the asteroid 10 Hygiea
• 408 km — length of the London Underground (active track)
• 420 km — diameter of Proteus, the second largest moon of Neptune
• 430 km — length of the Pyrenees
• 468 km — diameter of the asteroid 4 Vesta
• 470 km — distance from Dublin to London as the crow flies
• 472 km — diameter of Miranda, one of Uranus' major moons
• 499 km — diameter of Enceladus, one of Saturn's moons
• 500 km — widest width of Sweden from east to west
• 550 km — distance from San Francisco to Los Angeles as the crow flies
• 526 km — diameter of the asteroid 2 Pallas
• 590 km — length of land boundary between Finland and Sweden
• 600 km — range of a Scud-C missile
• 600 km — height above ground of the Hubble Space Telescope
• 700 km — range of a Scud-D missile
• 724 km — length of the Om River
• 871 km — distance from Sydney to Melbourne (along the Hume Highway)
• 946 km — diameter of the asteroid 1 Ceres
• Distances longer than 1,000 km

See also

• Orders of magnitude (length)