Kilometers to Millimeters Converter
CommonMeters, feet, miles and other distances.
How to convert Kilometers to Millimeters
Multiply the kilometers value by 1e+6: 1 km = 1e+6 mm. Going the other way, 1 mm = 1e-6 km, so divide by 1e+6 or use the Millimeters to Kilometers converter.
About these units
Kilometers (km)
A kilometer is 1,000 meters, the standard unit for road distances and travel in most of the world. One kilometer is about 0.621 miles.
Millimeters (mm)
A millimeter is one thousandth of a meter. It is the usual unit for engineering drawings, paper sizes and anything measured finer than a centimeter.
Kilometers to Millimeters conversion table
| Kilometers (km) | Millimeters (mm) |
|---|---|
| 1 km | 1e+6 mm |
| 2 km | 2e+6 mm |
| 3 km | 3e+6 mm |
| 4 km | 4e+6 mm |
| 5 km | 5e+6 mm |
| 10 km | 1e+7 mm |
| 20 km | 2e+7 mm |
| 25 km | 2.5e+7 mm |
| 50 km | 5e+7 mm |
| 100 km | 1e+8 mm |
| 500 km | 5e+8 mm |
| 1,000 km | 1e+9 mm |
More kilometers conversions
- Kilometers to Meters1 km = 1,000 m
- Kilometers to Centimeters1 km = 100,000 cm
- Kilometers to Micrometers1 km = 1e+9 µm
- Kilometers to Nanometers1 km = 1e+12 nm
- Kilometers to Decimeters1 km = 10,000 dm
- Kilometers to Feet1 km = 3,280.84 ft
- Kilometers to Light Years1 km = 1.057e-13 ly
See every unit on the Length Converter.