## ››Convert millimicron to millimetre

 millimicron millimeter

How many millimicron in 1 millimeter? The answer is 1000000.
We assume you are converting between millimicron and millimetre.
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millimicron or millimeter
The SI base unit for length is the metre.
1 metre is equal to 1000000000 millimicron, or 1000 millimeter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimicrons and millimetres.
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## ››Definition: Millimicron

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

## ››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.

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