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:
- 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