›› Convert millimetre to micrometre


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to micrometre

›› More information from the unit converter

How many mm in 1 micrometer? The answer is 0.001.
We assume you are converting between millimetre and micrometre.
You can view more details on each measurement unit:
mm or micrometer
The SI base unit for length is the metre.
1 metre is equal to 1000 mm, or 1000000 micrometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimetres and micrometres.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of mm to micrometer

1 mm to micrometer = 1000 micrometer

2 mm to micrometer = 2000 micrometer

3 mm to micrometer = 3000 micrometer

4 mm to micrometer = 4000 micrometer

5 mm to micrometer = 5000 micrometer

6 mm to micrometer = 6000 micrometer

7 mm to micrometer = 7000 micrometer

8 mm to micrometer = 8000 micrometer

9 mm to micrometer = 9000 micrometer

10 mm to micrometer = 10000 micrometer

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You can do the reverse unit conversion from micrometer to mm, or enter any two units below:

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›› Definition: Millimeter

A millimetre (American spelling: millimeter, symbol mm) is one thousandth of a metre, which is the International System of Units (SI) base unit of length. The millimetre is part of a metric system. A corresponding unit of area is the square millimetre and a corresponding unit of volume is the cubic millimetre.

›› Definition: Micrometer

A micrometre (American spelling: micrometer, symbol µm) is an SI unit of length equal to one millionth of a metre, or about a tenth of the size of a droplet of mist or fog. It is also commonly known as a micron, although that term is officially outdated. It can be written in the expanded mathmatical notation (1×10-6 m)

The symbol µ is the "micro sign", which should look identical to the Greek letter mu (?) (the two may or may not look the same, depending on the font). The symbol "um" is sometimes used, when the µ and ? are not available, for example when using a typewriter.

The micrometre is a common unit of measurement for wavelengths of infrared radiation. Some people (especially in astronomy and the semiconductor business) use the old name micron and/or the solitary symbol µ (both of which were official between 1879 and 1967) to denote a micrometre. This practice persists in the face of official discouragement, perhaps to help disambiguate between the unit of measurement and the micrometer, a measuring device.

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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!