# Conversion from Kilometer (km) to Millimeter (mm) and vice versa

Updated on by Stefan Banse

Here you can convert the Unit of length Kilometer into the unit Millimeter and vice versa you can convert Millimeter into Kilometer. By clicking the "Swap units" icon, you will always obtain the desired conversion in the calculation result, i.e., km to mm or mm to km. With the following calculator you can also calculate any other Unit of length.

The unit kilometer belongs to the metric system and is derived from the basic unit meter. Here, 1 kilometer can be converted into 1,000 meters or 1 meter is equivalent to 0.001 kilometers. The kilometer belongs to the International System of Units (SI).

In most parts of the world today, kilometers is the measuring unit used to express distances between geographical locations in the countryside. The United States and the United Kingdom are exceptions to this practice, where miles are used as a measuring unit.

The millimeter unit is part of a metric system and is derived from the basic unit meter. 1 millimeter is equivalent to 0.001 meters or 1 meter is equivalent to 1000 millimeters. The prefix "Milli" stands for one thousandth of a meter. The millimeter belongs to the International System of Units (SI).

## Basis for conversion Kilometer (km) to Millimeter (mm) and vice versa

The abbreviation for the "Unit of length Kilometer" is km. The abbreviation for the "Unit of length Millimeter" is mm.

## Formula for the conversion of Kilometer (km) to Millimeter (mm) and vice versa

The calculation from Kilometer to Millimeter shall be made using the following conversion formula:

Conversion formula Kilometer to Millimeter

Determine the number of Millimeter from Kilometer

Kilometer × 1000000

## Formula for the conversion of Millimeter (mm) to Kilometer (km)

The calculation from Millimeter to Kilometer shall be made using the following conversion formula:

Conversion formula Millimeter to Kilometer

Determine the number of Kilometer from Millimeter

Millimeter × 1.0E-6

## Overview table: How many Kilometer are how many Millimeter?

Kilometer km ⇒ Millimeter mm
0.01 km  are  10 000 mm
0.02 km  are  20 000 mm
0.03 km  are  30 000 mm
0.04 km  are  40 000 mm
0.05 km  are  50 000 mm
0.06 km  are  60 000 mm
0.07 km  are  70 000 mm
0.08 km  are  80 000 mm
0.09 km  are  90 000 mm
0.10 km  are  100 000 mm
0.20 km  are  200 000 mm
0.30 km  are  300 000 mm
0.40 km  are  400 000 mm
0.50 km  are  500 000 mm
0.60 km  are  600 000 mm
0.70 km  are  700 000 mm
0.80 km  are  800 000 mm
0.90 km  are  900 000 mm
1 km  corresponds to  1 000 000 mm
2 km  are  2 000 000 mm
3 km  are  3 000 000 mm
4 km  are  4 000 000 mm
5 km  are  5 000 000 mm
6 km  are  6 000 000 mm
7 km  are  7 000 000 mm
8 km  are  8 000 000 mm
9 km  are  9 000 000 mm
10 km  are  10 000 000 mm
20 km  are  20 000 000 mm
30 km  are  30 000 000 mm
40 km  are  40 000 000 mm
50 km  are  50 000 000 mm
60 km  are  60 000 000 mm
70 km  are  70 000 000 mm
80 km  are  80 000 000 mm
90 km  are  90 000 000 mm
100 km  are  100 000 000 mm
200 km  are  200 000 000 mm
300 km  are  300 000 000 mm
400 km  are  400 000 000 mm
500 km  are  500 000 000 mm
600 km  are  600 000 000 mm
700 km  are  700 000 000 mm
800 km  are  800 000 000 mm
900 km  are  900 000 000 mm
1 000 km  are  1 000 000 000 mm

## Overview table: How many Millimeter are how many Kilometer?

Millimeter mm ⇒ Kilometer km
10 mm  are  0.00001 km
20 mm  are  0.00002 km
30 mm  are  0.00003 km
40 mm  are  0.00004 km
50 mm  are  0.00005 km
60 mm  are  0.00006 km
70 mm  are  0.00007 km
80 mm  are  0.00008 km
90 mm  are  0.00009 km
100 mm  are  0.00010 km
200 mm  are  0.00020 km
300 mm  are  0.00030 km
400 mm  are  0.00040 km
500 mm  are  0.00050 km
600 mm  are  0.00060 km
700 mm  are  0.00070 km
800 mm  are  0.00080 km
900 mm  are  0.00090 km
1 000 mm  are  0.00100 km

## Source information

As source for the information in the "Units of length" category, we have used in particular:

## Last update on November 22, 2020

The last changes in the "Units of length" category were implemented by Stefan Banse on November 22, 2020. The main changes were:

• November 5, 2020: Publication of the Length converter
• Editorial revision of all texts in this category