To convert **mm to µm** 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 | |
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Nautical mile | ^{} |

Fathom | ^{} |

The formulas for conversion are represented below:

µm = mm * 1000

Example: 30 Millimeters in Micrometers:

µm = mm * 1000

µm = 30 * 1000

µm = 30000

mm = µm / 1000

Example: 1.5 Micrometers in Millimeters:

mm = µm / 1000

mm = 1.5 / 1000

mm = 0.0015

Considering that 1 Millimeter is equivalent to 1000 Micrometers, you can use a rule of three to obtain that **100 Millimeters equals 100000 Micrometers**.

1 mm - 1000 µm

100 mm - x

Apply the rule of three and get:

x ~~mm~~ = 1000 * 100 µm~~mm~~

x = 100000 µm

If every 1000 Micrometers we have 1 Millimeter, just divide the number of Micrometers (100) by 1000, so you will obtain that **100 µm equals 0.1 mm**. Observe the calculation below:

mm = µm / 1000

mm = 100 / 1000

mm = 0.1