Micrometer to Millimeter Converter

How to Convert Micrometers to Millimeters

To convert micrometers (μm) to millimeters (mm), divide the length by 1,000:

Quick Reference

• 1 millimeter = 1,000 micrometers
• 1 micrometer = 0.001 millimeters
• The thickness of a human hair is about 40-50 micrometers
• A typical sheet of paper is about 100 micrometers thick