Convert kilometre (km) to millimetre (mm) instantly
| Kilometres (km) | Millimetres (mm) |
|---|---|
| 0.001 km | 1000 mm |
| 0.01 km | 10000 mm |
| 0.1 km | 100000 mm |
| 0.5 km | 500000 mm |
| 1 km | 1000000 mm |
| 2 km | 2000000 mm |
| 5 km | 5000000 mm |
| 10 km | 10000000 mm |
| 20 km | 20000000 mm |
| 50 km | 50000000 mm |
| 100 km | 100000000 mm |
| 200 km | 200000000 mm |
| 500 km | 500000000 mm |
| 1000 km | 1000000000 mm |
Length measurement spans from subatomic scales (nanometres, ångströms) to cosmic distances (light-years, astronomical units). The metric system (SI) uses the metre as its base unit, while the imperial system uses inches, feet, yards and miles.
Formula: mm = km × 1000000