Free online converter from kilometers to millimeters. Type a value to get an instant result, check the formula and use the quick reference table below.
| kilometers (km) | millimeters (mm) |
|---|---|
| 1 | 1000000 |
| 2 | 2000000 |
| 5 | 5000000 |
| 10 | 10000000 |
| 20 | 20000000 |
| 50 | 50000000 |
| 100 | 100000000 |
| 250 | 250000000 |
| 500 | 500000000 |
| 1000 | 1000000000 |
1 km = 1000000 mm.
Multiply the value in kilometers by 1000000 to get millimeters.