Kilometers to Millimeters Converter
Convert kilometers (km) to millimeters (mm), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Convert a length from one unit to another. For inches, feet and yards you also get feet and inches with a tape-measure fraction.
Show the working
- 1 km = 1000000 mm
- 1 × 1000000 = 1000000 mm
How to convert kilometers to millimeters
1 km = 1000000 mm, so multiply by 1000000 to go from kilometers to millimeters. Going the other way, 1 mm = 1 × 10^-6 km.
mm = km × 1000000 km = mm × 1
Worked example:
1 km = 1000000 mm 5 × 1000000 = 5000000 mm
Kilometers to millimeters table
| Kilometers | Millimeters |
|---|---|
| 1 km | 1000000 mm |
| 2 km | 2000000 mm |
| 3 km | 3000000 mm |
| 4 km | 4000000 mm |
| 5 km | 5000000 mm |
| 6 km | 6000000 mm |
| 7 km | 7000000 mm |
| 8 km | 8000000 mm |
| 9 km | 9000000 mm |
| 10 km | 10000000 mm |
| 15 km | 15000000 mm |
| 20 km | 20000000 mm |
| 25 km | 25000000 mm |
| 30 km | 30000000 mm |
| 40 km | 40000000 mm |
| 50 km | 50000000 mm |
| 75 km | 75000000 mm |
| 100 km | 100000000 mm |
| 250 km | 250000000 mm |
| 500 km | 500000000 mm |
| 1000 km | 1000000000 mm |
About the units
- Kilometers (km)
- Kilometers, a metric unit. Definition: BIPM SI Brochure (SI prefixes).
- Millimeters (mm)
- Millimeters, a metric unit. Definition: BIPM SI Brochure (SI prefixes).