Convert millimeters (mm) to micrometers (μm) with formulas, examples, and conversion tables.
How to Convert millimeters to micrometers
To convert millimeters to micrometers, multiply the value by 1000.
The Formula
micrometers = millimeters × 1000
Key Fact
1 millimeter = 1000 micrometers
Tip: To convert micrometers back to millimeters, divide by 1000.
About Millimeters and Micrometers
What is a Millimeter?
The millimeter (mm) is a unit of length in the metric system. One millimeter equals 0.001 meters.
What is a Micrometer?
The micrometer (μm) is a unit of length in the metric system. One micrometer equals 0.000001 meters.