## ››Convert millimicron to em

 millimicron em

 Did you mean to convert millimicron to em exametre

How many millimicron in 1 em? The answer is 4217517.6.
We assume you are converting between millimicron and em.
You can view more details on each measurement unit:
millimicron or em
The SI base unit for length is the metre.
1 metre is equal to 1000000000 millimicron, or 237.10630158366 em.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimicrons and em.
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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

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