How many micromicron in 1 millimicron?
The answer is 1000.
We assume you are converting between micromicron and millimicron.
You can view more details on each measurement unit: micromicron or
millimicron
The SI base unit for length is the metre.
1 metre is equal to 1000000000000 micromicron, or 1000000000 millimicron.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between micromicrons and millimicrons.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of micromicron to millimicron

The SI prefix "micro" represents a factor of
10^{-6}, or in exponential notation, 1E-6.

So 1 micromicron = 10^{-6} microns.

The definition of a micron is as follows:

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

››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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