because one kilometer is equal to 1,000,000 millimeters, you can use this straightforward formula to convert:

### How many Millimeters are in a Kilometer?

There room **1,000,000** millimeter in a kilometer, i m sorry is why we use this value in the formula above.

1 km = 1,000,000 mm

ours inch portion calculator can include kilometers and also millimeters together, and it additionally automatically counter the outcomes to us customary, imperial, and also SI metric values.

Kilometers and millimeters space both units provided to measure up length. Keep reading to learn much more about every unit that measure.

You are watching: How many milimetres in a kilometre

## Kilometers

One kilometre is same to 1,000 meters, i beg your pardon are defined as the street light travels in a vacuum in a 1/299,792,458 second time interval.<1>

The kilometer, or kilometre, is a many of the meter, i m sorry is the SI basic unit because that length. In the metric system, "kilo" is the prefix because that 103. Kilometers have the right to be abbreviated as *km*; for example, 1 kilometer deserve to be composed as 1 km.

## Millimeters

One millimeter is equal to one-thousandth (1/1,000) the a meter, i beg your pardon is characterized as the distance light travels in a vacuum in a 1/299,792,458 second time interval.

See more: What Does R Mean On A College Schedule Mean?? What Does Tr Mean On A College Class Schedule

The millimeter, or millimetre, is a lot of of the meter, i beg your pardon is the SI basic unit because that length. In the metric system, "milli" is the prefix for 10-3. Millimeters can be abbreviated as *mm*; for example, 1 millimeter deserve to be created as 1 mm.

millimeter are frequently represented through the the smallest ticks on many metric rulers. To obtain a reference suggest of the size, the thickness that a united state dime is 1.35mm.<2>

us recommend utilizing a leader or tape measure up for measure length, which have the right to be found at a regional retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you obtain the correct type for your needs.

need a ruler? shot our complimentary downloadable and also printable rulers, which incorporate both imperial and also metric measurements.

## Kilometer to Millimeter conversion Table

Kilometer measurements converted to millimeter Kilometers millimeter0.000001 km | 1 mm |

0.000002 km | 2 mm |

0.000003 km | 3 mm |

0.000004 km | 4 mm |

0.000005 km | 5 mm |

0.000006 km | 6 mm |

0.000007 km | 7 mm |

0.000008 km | 8 mm |

0.000009 km | 9 mm |

0.0000001 km | 0.1 mm |

0.000001 km | 1 mm |

0.00001 km | 10 mm |

0.0001 km | 100 mm |

0.001 km | 1,000 mm |

0.01 km | 10,000 mm |

0.1 km | 100,000 mm |

1 km | 1,000,000 mm |

## References

Ambler Thompson and Barry N. Taylor, guide for the usage of the worldwide System of devices (SI),*National academy of Standards and also Technology*, https://physics.nist.gov/cuu/pdf/sp811.pdfUnited states Mint, Coin Specifications, https://www.usmint.gov/learn/coin-and-medal-programs/coin-specifications

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