Convert millimeters (mm) to kilometers (km) with formulas, examples, and conversion tables.
How to Convert millimeters to kilometers
To convert millimeters to kilometers, divide the value by 1000000.
The Formula
kilometers = millimeters ÷ 1000000
Key Fact
1 kilometer = 1000000 millimeters
Tip: To convert kilometers back to millimeters, multiply by 1000000.
About Millimeters and Kilometers
What is a Millimeter?
The millimeter (mm) is a unit of length in the metric system. One millimeter equals 0.001 meters.
What is a Kilometer?
The kilometer (km) is a unit of length in the metric system. One kilometer equals 1000 meters.