Does temperature affect this conversion?

These are length units — thermal expansion applies to physical parts, not the arithmetic.

Switch to the Micron → Mesh converter once you know your target aperture.

Micron to millimeter converter

Divide microns by 1,000 — useful when reconciling microscopy readouts with mechanical drawings.

Microns (µm)

Millimeters (mm)

0.15

How many mm is 100 µm?: 0.1 mm exactly.
Does temperature affect this conversion?: These are length units — thermal expansion applies to physical parts, not the arithmetic.
Need mesh sizing?: Switch to the Micron → Mesh converter once you know your target aperture.