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

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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:

nm = km x 10^{12}

Example: 30 kilometers in meters:

nm = km x 1.000.000.000.000

nm = 30 x 1.000.000.000.000

nm = 3x10^{-13}

km = nm / 10^{12}

Example: 1500 Nanometers in kilometers:

km = nm / 1.000.000.000.000

km = 1500 / 1.000.000.000.000

km = 1,50x10^{-9}

Considering that 1 kilometer is equivalent to 10^{12} nanometers, you can use a rule of three to obtain that **1.5 km equals 1.5x10 ^{12} nm**.

1 km - 10^{12} nm

1,5 km - x

Apply the rule of three and get:

x ~~km~~ = 1,5 ~~km~~nm

x = 1,5x10^{12} nm

If every 1,000,000,000,000 Nanometers we have 1 kilometer, just divide the number of Nanometers (100) by 1000, so you will get that **100 m equals 0.1 km**. Observe the calculation below:

km = nm / 1.000.000.000.000

Km = 100 / 1.000.000.000.000

km = 1x10^{-10}