mm to um Converter - Millimeter to Micrometer

Millimeter (mm) to Micrometer (μm) (um)

Direct answer

1 mm = 1,000 um

um = mm × 1,000

Converter

Input

Result

1,000um

um = mm × 1,000

mm = um × 0.001

Example: 10 mm = 10 × 1,000 = 10,000 um.

Express both mm and um in the same base unit m (meter), then cancel the shared base unit.

1
Rewrite mm in the base unit
$1 mm = 0.001 m$
2
Rewrite um in the base unit
$1 um = 0.000001 m$
3
Forward conversion
$1 mm = \frac{0.001 m}{0.000001 m} \times 1 um = \frac{0.001}{0.000001} um = 1, 000 um$
4
Reverse conversion
$1 um = \frac{0.000001 m}{0.001 m} \times 1 mm = \frac{0.000001}{0.001} mm = 0.001 mm$

1 mm = 1,000 um.

10 mm = 10,000 um.

100 mm = 100,000 um.

Use um = mm × 1,000.

1 um = 0.001 mm.

Use the conversion factor and round the result to the precision required by your calculation.