The Earth-Moon orbit, Saturn, OGLE-TR-122b, Jupiter, and other objects, to scale. Click on image for detailed view and links to other length scales.
To help compare different orders of magnitude, this page lists lengths starting at 108 metres (100 megametres or 100,000 kilometres or 62,150 miles).
Distances shorter than 108 metres
- 102.000 Mm — Diameter of HD 149026 b, an unusually dense Jovian planet
- 111.191 Mm — 20,000 (nautical, British) leagues (see Jules Verne)
- 120.000 Mm — Diameter of Saturn
- 140.000 Mm — Diameter of Jupiter
- 174.000 Mm — Diameter of OGLE-TR-122b, the smallest known star
- 180.000 Mm — Diameter of HD 209458 b, the largest known planet
- 280.000 Mm — Diameter of Proxima Centauri, a typical red dwarf
- 299.792 Mm — One light second; the distance light travels in vacuum in one second (see speed of light)
- 384.300 Mm (238,840 mi) — Average Earth-Moon distance
Distances longer than 109 metres
See also

Click on the thumbnail image to jump to the desired order of length magnitude: top-left is 1e6m, lower-right is 1e17m. (Image description)
| Orders of magnitude for length in E notation, shorter than one metre: | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <-24 | -24 | -23 | -22 | -21 | -20 | -19 | -18 | -17 | -16 | -15 | -14 | -13 | -12 | -11 | -10 | -9 | -8 | -7 | -6 | -5 | -4 | -3 | -2 | -1 | 0 |
| longer than 1 metre: | |||||||||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
References
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