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Micrometers to Millimeters Converter

Quick answer: 1 µm = 0.001 mm. To convert micrometers to millimeters, multiply by 0.001.

µm
mm

Millimeters = Micrometers × 0.001

Swap: Millimeters to Micrometers

Micrometers to Millimeters conversion table

MicrometersMillimeters
1 µm0.001 mm
2 µm0.002 mm
5 µm0.005 mm
10 µm0.01 mm
25 µm0.025 mm
50 µm0.05 mm
100 µm0.1 mm

How to convert micrometers to millimeters

Millimeters = Micrometers × 0.001. For example, 2 µm = 0.002 mm. Type a value in either box above: the other one updates instantly, both ways.

What is a micrometer?

A micrometer (µm), or micron, is one millionth of a meter; a human hair is about 70 µm thick.

What is a millimeter?

A millimeter (mm) is one thousandth of a meter, the smallest mark on a metric ruler.

How do I convert micrometers to millimeters?

Use the formula Millimeters = Micrometers × 0.001. Type a value in the micrometers box and the result appears instantly.

How many millimeters are in 1 micrometer?

1 µm = 0.001 mm.

Is this converter free and private?

Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.