Difference between Millimeter and Micron

What is the difference between Millimeter and Micron?

Millimeter as a noun is an si/mks unit of measure, the length of 1/1000 of a meter. symbol: mm while Micron as a noun is a unit of length; the thousandth part of one millimeter; the millionth part of a meter.

We hope you now know whether to use Millimeter or Micron in your sentence.