Convert Micrometers to Millimeters

Micrometers → Millimeters
µm × 0.001 = mm mm × 1000 = µm

To convert micrometers (µm) to millimeters (mm), multiply the micrometers value by 0.001. 1 µm = 0.001 mm, and 1 mm = 1000 µm. The conversion is a linear scaling with no offset, so the same factor applies to any value.

Going the other way? Convert mm to µm.

µm to mm table
Micrometers (µm) Millimeters (mm)
0.1 µm 0.0001 mm
0.5 µm 0.0005 mm
1 µm 0.001 mm
2 µm 0.002 mm
5 µm 0.005 mm
10 µm 0.01 mm
20 µm 0.02 mm
50 µm 0.05 mm
100 µm 0.1 mm
500 µm 0.5 mm
1000 µm 1 mm
Common linear distance ranges
Typical real-world values (mm)
Application Typical range
Precision positioning stroke 1 – 50 mm
Linear actuator stroke 50 – 500 mm
Gantry axis travel 500 – 5,000 mm
Long-travel transport 5,000 – 50,000 mm