How many micrometre in 1 millimicron?
The answer is 0.001.

We assume you are converting between **micrometre** and **millimicron**.

You can view more details on each measurement unit:

micrometre or
millimicron

The SI base unit for **length** is the metre.

1 metre is equal to 1000000 micrometre, or 1000000000 millimicron.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between micrometres and millimicrons.

Type in your own numbers in the form to convert the units!

1 micrometre to millimicron = 1000 millimicron

2 micrometre to millimicron = 2000 millimicron

3 micrometre to millimicron = 3000 millimicron

4 micrometre to millimicron = 4000 millimicron

5 micrometre to millimicron = 5000 millimicron

6 micrometre to millimicron = 6000 millimicron

7 micrometre to millimicron = 7000 millimicron

8 micrometre to millimicron = 8000 millimicron

9 micrometre to millimicron = 9000 millimicron

10 micrometre to millimicron = 10000 millimicron

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

micrometre to roede

micrometre to braccio

micrometre to range

micrometre to mille

micrometre to story

micrometre to vara

micrometre to reed

micrometre to siriometer

micrometre to centimeter

micrometre to miil

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 It is also commonly known as a micron, although that term is officially outdated.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.

The SI prefix "milli" represents a factor of
10^{-3}, or in exponential notation, 1E-3.

So 1 millimicron = 10^{-3} microns.

The definition of a micron is as follows:

a metric unit of length equal to one millionth of a meter

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