Length Converter
Metric and imperial distances.
Conversion
Kilometers to Millimeters Converter
1 kilometer = 1,000,000 mm. Enter any value to convert kilometers (km) to millimeters (mm), or use the table below for common values.
Formula
mm = km × 1,000,000
Example: 10 km = 10,000,000 mm. To convert the other way, use km = mm × 0.000001.
Kilometers to Millimeters conversion table
| Kilometers (km) | Millimeters (mm) |
|---|---|
| 1 km | 1,000,000 mm |
| 2 km | 2,000,000 mm |
| 3 km | 3,000,000 mm |
| 4 km | 4,000,000 mm |
| 5 km | 5,000,000 mm |
| 6 km | 6,000,000 mm |
| 7 km | 7,000,000 mm |
| 8 km | 8,000,000 mm |
| 9 km | 9,000,000 mm |
| 10 km | 10,000,000 mm |
| 15 km | 15,000,000 mm |
| 20 km | 20,000,000 mm |
| 25 km | 25,000,000 mm |
| 30 km | 30,000,000 mm |
| 40 km | 40,000,000 mm |
| 50 km | 50,000,000 mm |
| 75 km | 75,000,000 mm |
| 100 km | 100,000,000 mm |
| 250 km | 250,000,000 mm |
| 500 km | 500,000,000 mm |
| 1,000 km | 1,000,000,000 mm |
About kilometers and millimeters
The kilometer is 1,000 meters. It is the standard unit for road distances and speed limits in most of the world.
The millimeter is one thousandth of a meter. It is the standard unit on engineering drawings, for rainfall, and for screen, sheet and tool sizes.
Other Length conversions
Millimeters → KilometersReverse conversionCentimeters → Millimeterscm → mmMeters → Millimetersm → mmKilometers → Centimeterskm → cmKilometers → Meterskm → mKilometers → Incheskm → inKilometers → Feetkm → ftKilometers → Yardskm → ydKilometers → Mileskm → miKilometers → Nautical Mileskm → nmiInches → Millimetersin → mmFeet → Millimetersft → mmYards → Millimetersyd → mmMiles → Millimetersmi → mmNautical Miles → Millimetersnmi → mm
Frequently asked questions
How do I convert kilometers to millimeters?
Use the formula mm = km × 1,000,000. For example, 10 km = 10,000,000 mm.
What is 1 kilometer in millimeters?
1 km = 1,000,000 mm.
How do I convert millimeters back to kilometers?
Use km = mm × 0.000001. 1 mm = 0.000001 km.