Convert between metric and imperial length units, including millimeters (mm), meters (m), inches (in), feet (ft), and miles (mi). Length is a fundamental physical quantity measuring the distance between two points. The meter (m) is the SI base unit; imperial units are defined by exact conversion factors to SI (e.g. 1 in = 25.4 mm).
This length converter transforms values from Millimeters (mm) to Kilometers (km). Results update instantly using the exact conversion factor.
The millimeter (mm) is one-thousandth of a meter (1 mm = 10⁻³ m).
The kilometer (km) equals 1,000 m and is used for road distances and geography.
1 mm ÷ 1000000 = 0.000001 km
km = mm ÷ 1000000
To convert mm to km, divide the value in mm by 1000000 (since 1 mm = 0.000001 km). Equivalently, multiply by 0.000001. Example: 1 mm = 1 mm × 0.000001 = 0.000001 km.
10 mm = 0.00001 km ÷ 1000000 = 10 mm
Common values from mm to km.
| mm | km |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |