To convert **mm to km** enter the value in the field below and select the target unit, the value will be displayed below:

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Metric | |
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Kilometer (km) | ^{} |

Meter (m) | ^{} |

Decimeter (dm) | ^{} |

Centimeter (cm) | ^{} |

Millimeter (mm) | ^{} |

Micrometer (µm) | ^{} |

Nanometer (nm) | ^{} |

Angstrom (Å) | ^{} |

Astronomical | |
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Parsec (pc) | ^{} |

Light-year | ^{} |

Astronomical unit (AU) | ^{} |

Light-minute | ^{} |

Light-second | ^{} |

British/American | |
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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:

km = mm / 1000000

Example: 3000 Millimeters in Kilometers:

km = mm / 1000000

km = 3000 / 1000000

km = 0.003

mm = km * 1000000

Example: 2 Kilometers in Millimeters:

mm = km * 1000000

mm = 2 * 1000000

mm = 2000000

Considering that 1 Millimeter is equivalent to 0.000001 Kilometer, you can use a rule of three to obtain that **100 Millimeter equals 0.0001 Kilometer**.

1 mm - 0.000001 km

100 mm - x

Apply the rule of three and get:

x ~~mm~~ = 0.0001 km~~mm~~

x = 0.0001 km

If every 1 Kilometers we have 1000000 Millimeters, just multiply the number of Kilometers (100) by 1000000, so you will obtain that **100 km equals 100,000,000 mm**. Observe the calculation below:

mm = km * 1000000

mm = 100 * 1000000

mm = 100,000,000