Conversion reference
Formula: um = mm x 1,000.
Millimeters to Micrometers Converter
Convert Millimeters (mm) to Micrometers (um). Change either field to update the other value instantly.
mm and um converter
This page converts length units directly in your browser.
mm to um conversion table
| Millimeters | Micrometers |
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mm to um formula
About mm
Millimeters are used in length conversions. Enter a mm value above to calculate um instantly.
About um
Micrometers are the target unit on this page. The table below gives common reference values for quick comparison.
Convert other units to um
These pages use um as the target unit.