15 kilometres
15 kmLength · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Length & distance
Just how long is 15 kilometres?
Our planet
15 km
15,000 mmetres
49,213 ftfeet
9.3206 mimiles
1.0027 × 10⁻⁷ AUastronomical units
01
15 kilometres15 kmLength · definition
02
Deimos12.4 kmRepresentative mean diameter · approximate · range 10 km–15 km
Both marked spans share one linear scale. Artwork keeps its proportions; poses and surface detail are illustrative.
A little perspective
The length of 15 kilometres is about 1.21 times the representative mean diameter of Deimos.
Measurements, assumptions & sources +
15 kilometres
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Deimos
Mars’s smaller moon is irregular, roughly 15 × 12 × 11 km. The 12.4 km diameter is a representative comparison span rather than a hard spherical edge.
The marked representative mean diameter is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
The visual compares length with representative mean diameter. The records below preserve each value’s basis and caveats.
Deimos
12.4 kmRepresentative mean diameter · approximate · range 10 km–15 km
Mars’s smaller moon is irregular, roughly 15 × 12 × 11 km. The 12.4 km diameter is a representative comparison span rather than a hard spherical edge.
- Comparing
- Length ↔ Representative mean diameter
- Relative size
- 15 kilometres is larger on this measurement by a factor of about 1.21. 15 kilometres's selected measurement is approximately 21% greater than Deimos's.
How to read the visual
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
- Deimos uses a 12.4 km central value within a recorded range of 10 km–15 km.
- Deimos is labelled approximate; treat the displayed value as a comparison anchor rather than false precision.
- The recorded ranges overlap, so the ordering can vary even though the central values differ.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
A little smaller. A little larger.