LENGTH CONVERSION
Micrometer to Millimeter.
Convert micrometer (μm) to millimeter (mm), with the math explained.
THE MATH, MADE SIMPLE
How to convert micrometer to millimeter
Multiply your micrometer value by 0.001 to get the equivalent in millimeter. Both units are normalized through the meter.
mm = μm × 0.00110 μm = 0.01 mm
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
μm to mm conversion table
| Micrometer (μm) | Millimeter (mm) |
|---|---|
| 1 μm | 0.001 mm |
| 2 μm | 0.002 mm |
| 5 μm | 0.005 mm |
| 10 μm | 0.01 mm |
| 20 μm | 0.02 mm |
| 50 μm | 0.05 mm |
| 100 μm | 0.1 mm |
| 500 μm | 0.5 mm |
| 1,000 μm | 1 mm |
About the micrometer
The micrometer (μm) is a unit of length. One micrometer equals 0.000001 meter (base unit) in this calculator.
All micrometer conversionsAbout the millimeter
The millimeter (mm) is a unit of length. One millimeter equals 0.001 meter (base unit) in this calculator.
All millimeter conversionsCommon questions
What is 1 μm in mm?
One micrometer equals 0.001 mm. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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