Length and Area
mtokm
Convert metres (m) to kilometres (km).
Factor1 m = 0.001 km
Converter
m
Accepts numbers or expressions, e.g. 150 + 14.7
Result
km
Rendered to 6 significant figures.
Formula
Formula
km = m × 0.001
Multiply any value in metres by 0.001 to obtain the value in kilometres.
Worked example
Convert 1000 m to km.
- 01Start with 1000 m.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 km.
Result1000 m = 1 km
Conversion table
| m | km |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from m to km?
1 m equals 0.001 km. To convert, multiply the value in metres by 0.001.
How do I convert 1 m to km?
1 m = 0.001 km. For any value, multiply by 0.001.
How do I convert km back to m?
Divide by the same factor — or equivalently, multiply by 1000. So 1 km = 1000 m.
When would I need to convert metre to kilometre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both m and km are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).