To convert kilometer to millimeter enter the value in the field below and select the target unit, the value will be displayed below:
| Metric | |
|---|---|
| Kilometer (km) | |
| Meter (m) | |
| Decimeter (dm) | |
| Centimeter (cm) | |
| Millimeter (mm) | |
| Micrometer (µm) | |
| Nanometer (nm) | |
| Angstrom (Å) | |
| Astronomical | |
|---|---|
| Parsec (pc) | |
| Light-year | |
| Astronomical unit (AU) | |
| Light-minute | |
| Light-second | |
| British/American | |
|---|---|
| League | |
| Mile (mi) | |
| Furlong | Chain |
| Rod (rd) | |
| Yard (yd) | |
| Foot (ft) | |
| Link | |
| Hand | |
| Inch (in) | |
| Line | |
| Thousandth (mil) | |
| Thou (thou) | |
| Nautical | |
|---|---|
| Nautical mile | |
| Fathom | |
The formulas for conversion are represented below:
m = km x 1000000
Example: 30 kilometers in meters:
mm = km x 1000000
mm = 30 x 1000000
mm = 30000000
km = mm / 1000000
Example: 1500 meters in kilometers:
km = mm / 1000000
km = 1500 / 1000000
km = 0.0015
Considering that 1 kilometer equals 1000000 millimeters, you can use a rule of three to get that 3 km equals 3000000 millimeters.
1 km - 1000000 mm
3 km - x
Apply the rule of three and get:
x km = 3000000 mkm2
x = 3000000 mm
If every 1000000 millimeters we have 1 kilometer, just divide the number of millimeters (10000) by 1000000, so you will get that 10000 mm equals 0.01 km. Observe the calculation below:
km = mm / 1000000
Km = 10000 / 1000000
km = 0,01