Micrometers to Millimeters
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um
mm
Quick reference
| Micrometers (um) | Millimeters (mm) |
|---|
Formula
Millimeters = micrometers ÷ 1000
Multiply the micrometers value by 0.001 to get millimeters. To reverse — divide millimeters by 0.001 to get micrometers.
About this conversion
The micrometer (μm), also called a micron, is a metric unit equal to one millionth of a meter, used in manufacturing tolerances, cell biology and optics. Learn more →
The millimeter (mm) is a metric unit equal to one thousandth of a meter, used in engineering and manufacturing. Learn more →
Source: NIST International Reference