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Convert Millimeters to Micrometers

1 millimeter = 1,000 micrometers. Type any value below to convert in either direction — the calculation happens in your browser.

Millimeters to Micrometers formula

Multiply the number of millimeters by 1000 to get micrometers.

micrometers = millimeters × 1000

To go the other way: divide the number of micrometers by 1000, or multiply by 0.001.

millimeters = micrometers ÷ 1000

Millimeters to Micrometers conversion table

MillimetersMicrometers
1 mm1,000 µm
2 mm2,000 µm
3 mm3,000 µm
4 mm4,000 µm
5 mm5,000 µm
6 mm6,000 µm
7 mm7,000 µm
8 mm8,000 µm
9 mm9,000 µm
10 mm10,000 µm
15 mm15,000 µm
20 mm20,000 µm
25 mm25,000 µm
30 mm30,000 µm
40 mm40,000 µm
50 mm50,000 µm
75 mm75,000 µm
100 mm100,000 µm
250 mm250,000 µm
500 mm500,000 µm
1,000 mm1,000,000 µm

Micrometers to Millimeters conversion table

MicrometersMillimeters
1 µm0.001 mm
2 µm0.002 mm
3 µm0.003 mm
4 µm0.004 mm
5 µm0.005 mm
6 µm0.006 mm
7 µm0.007 mm
8 µm0.008 mm
9 µm0.009 mm
10 µm0.01 mm

About the millimeter

A millimetre is one thousandth of a metre and is the default unit on engineering drawings and rulers.

About the micrometer

A micrometre, or micron, is one millionth of a metre — the scale of bacteria, fine dust and semiconductor features.

Frequently asked questions

How many micrometers are in a millimeter?

There are 1,000 micrometers in one millimeter.

How many millimeters are in a micrometer?

There are 0.001 millimeters in one micrometer.

Is this conversion exact?

The ratio between the millimeter and the micrometer is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.

What is 10 millimeters in micrometers?

10 millimeters equals 10,000 micrometers.

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