How to use our kilometers (km) to millimeters (mm) converter?
Our kilometers (km) to millimeters (mm) converter tool gives you automatically the value in millimeters when you fill in the numbers of kilometers. To convert from millimeters (mm) to kilometers (km), you need to use the millimeters (mm) to kilometers (km) converter.
Length unit table
| Nanometer | micrometer | millimeter | centimeter | decimeter | meter | decameter | hectometer | kilometer |
| nm | µm | mm | cm | dm | m | dam | hm | km |
| 0.000 000 001 | 0.000 001 | 0.001 | 0.01 | 0.1 | 1 | 10 | 100 | 1000 |
How to convert kilometers (km) to millimeters (mm)?
1 km = 1 000 000 mm
1 mm = 0.000 001 km
So to convert a value from kilometers (km) to millimeters (mm) you need to multiply the value in kilometers by 1 000 000 (1 million).
All length unit conversion
Nanometer (nm)
From nm:
To nm:
Micrometers (µm)
From µm:
To µm:
Millimeters (mm)
From mm:
To mm:
Centimeters (cm)
From cm:
To cm:
Decimeters (dm)
From dm:
To dm:
Meters (m)
From m:
To m:
Decameter (dam)
From dam:
To dam:
Hectometers (hm)
From hm:
To hm:
Kilometers (km)
From km:
To km: