Millimeters to Micrometers Converter

1 mm = 1,000 µm. Type any value below for the exact micrometers figure.

mm
1,000µm

1 mm = 1,000 µm

Conversion summary

1 mm = 1,000 µm

Formula
Micrometer = Millimeter × 1,000
Category
Length
Units
mm → µm

1 mm in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

Metric

US / Imperial

  • Foot0.00328084 ft
  • Inch0.03937008 in
  • Yard0.001093613 yd
  • Mile0.0000006213712 mi
  • Furlong0.00000497097 fur
  • Nautical mile0.0000005399568 nmi
  • Fathom0.0005468066 ftm

Traditional and regional

  • Scandinavian mile0.0000001 mil
  • Arshin0.001470588 arshin
  • Endaze0.001538462 endaze
  • Byzantine Foot0.00317662 pus
  • Byzantine Fathom0.0005294367 orgyia
  • Cig0.003003003 cig

Scientific

  • Astronomical Unit6.68459E-15 AU
  • Light-year1.057E-19 ly
  • Parsec3.24078E-20 pc
  • Angstrom10,000,000 Å

How do you convert millimeters to micrometers?

To convert millimeters to micrometers, multiply the number of millimeters by 1,000. 1 mm = 1,000 µm.

Conversion formula

Micrometer = Millimeter × 1,000

Millimeters to micrometers conversion table

Millimeters (mm)Micrometers (µm)
0.001 mm1 µm
0.01 mm10 µm
0.1 mm100 µm
1 mm1,000 µm
5 mm5,000 µm
10 mm10,000 µm
50 mm50,000 µm

What is Millimeter?

The millimeter is a unit of length equal to one thousandth of a meter. It is widely used in technical and precision work.

Short history of Millimeter

The millimeter became especially important as manufacturing and engineering required tighter tolerances and repeatable precision.

Open the Millimeter unit guide

What is Micrometer?

Micrometer is a length unit used to express distance, size or travel range in practical measurement work.

Short history of Micrometer

The prefix micro- (one millionth, from Greek mikros, small) was formally adopted with the SI in 1960; the micrometer (often called a micron) is used for cell sizes, fiber diameters and machining tolerances.

Open the Micrometer unit guide

Frequently asked questions

What is 1 Millimeter in Micrometer?

1 mm = 1,000 µm.

How do you convert Millimeter to Micrometer?

To convert millimeters to micrometers, multiply the number of millimeters by 1,000. 1 mm = 1,000 µm.

Frequently asked questions

How many micrometers are in 1 millimeter?

1 mm = 1,000 µm.

How do you convert millimeters to micrometers?

To convert millimeters to micrometers, multiply the number of millimeters by 1,000. 1 mm = 1,000 µm.

How many millimeters are in 1 micrometer?

1 µm = 0.001 mm.

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: SI Units – Length
  3. NIST: Guide for the Use of the International System of Units

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