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µm to mm converter

1 µm = 0.001 mm

And 1 mm = 1,000 µm. Micrometres (microns) to millimetres.

Formula

mm = µm × 0.001

A reading of 10 µm is 10 × 0.001 = 0.01 mm.

µm to mm table

µmmm
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

mm to µm table

mmµm
1 mm1,000 µm
2 mm2,000 µm
5 mm5,000 µm
10 mm10,000 µm
25 mm25,000 µm
50 mm50,000 µm

About these units

µm (micrometres (microns)): Surface finish and fine tolerances.

mm (millimetres): Drawings, machining and tolerances.

The international inch is exactly 25.4 mm. A mil (or thou) is a thousandth of an inch, used for coating, film and tolerance values; do not confuse it with the millimetre.

Convert mm to µm instead · All length conversions

More µm conversions

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