Micrometer Converter

Use our micrometer converter to learn the conversions between the micrometer and any other length measurement units.

Clear
Result0.001 mm1 µm converted
1 µm equals0.001 mm
1 mm equals1,000 µm

Micrometer to millimeter reference

micrometermillimeter
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
500 µm0.5 mm
1,000 µm1 mm

How to convert micrometer to millimeter

One micrometer equals 0.001 mm, so multiply the number of micrometers by 0.001:

mm = µm × 0.001

Going the other way

One millimeter equals 1000 µm, so to convert back:

µm = mm × 1000

Both directions are shown in the results above, and the drop-downs let you convert between any pair of length units — not just these two.