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Millimeters to Micrometers Converter

Quick answer: 1 mm = 1,000 µm. To convert millimeters to micrometers, multiply by 1,000.

mm
µm

Micrometers = Millimeters × 1,000

Swap: Micrometers to Millimeters

Millimeters to Micrometers conversion table

MillimetersMicrometers
1 mm1,000 µm
2 mm2,000 µm
5 mm5,000 µm
10 mm10,000 µm
25 mm25,000 µm
50 mm50,000 µm
100 mm100,000 µm

How to convert millimeters to micrometers

Micrometers = Millimeters × 1,000. For example, 2 mm = 2,000 µm. Type a value in either box above: the other one updates instantly, both ways.

What is a millimeter?

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

What is a micrometer?

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

How do I convert millimeters to micrometers?

Use the formula Micrometers = Millimeters × 1,000. Type a value in the millimeters box and the result appears instantly.

How many micrometers are in 1 millimeter?

1 mm = 1,000 µm.

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.