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Micrometers to Millimeters

Convert micrometers to millimeters (µm to mm) instantly. 1 µm = 0.001 mm. Includes the formula and a conversion table.

How to convert micrometers to millimeters

One micrometer equals 0.001 millimeters – put the other way, one millimeter is 1,000 micrometers. So divide the number of micrometers by 1,000. For example, 5 µm ÷ 1,000 = 0.005 mm.

Micrometers to millimeters table

Micrometers (µm)Millimeters (mm)
0.1 µm0.0001 mm
0.5 µm0.0005 mm
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
15 µm0.015 mm
20 µm0.02 mm
25 µm0.025 mm
30 µm0.03 mm
50 µm0.05 mm
75 µm0.075 mm
100 µm0.1 mm
250 µm0.25 mm
500 µm0.5 mm
1,000 µm1 mm

Need it the other way? Use the millimeters to micrometers converter, or the unit converter for any other length unit.

Questions

How many millimeters are in a micrometer?

1 µm = 0.001 mm.

How many micrometers are in a millimeter?

1 mm = 1,000 µm.

What is 10 µm in mm?

10 µm = 0.01 mm.