Millimeters to Micrometers
1 mm = 1,000 µm. Edit either value to convert instantly.
Conversion formula
µm = mm × (0.001) × (1,000,000)1 mm = 1,000 µm
millimeter (mm)
One millimeter equals exactly 0.001 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
micrometer (µm)
One micrometer equals exactly 0.000001 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
Conversion table
| mm | µm |
|---|---|
| = 1,000 | |
| = 2,000 | |
| = 5,000 | |
| = 10,000 | |
| = 15,000 | |
| = 20,000 | |
| = 25,000 | |
| = 30,000 | |
| = 40,000 | |
| = 45,000 |
| mm | µm |
|---|---|
| = 50,000 | |
| = 60,000 | |
| = 70,000 | |
| = 80,000 | |
| = 90,000 | |
| = 100,000 | |
| = 150,000 | |
| = 160,000 | |
| = 170,000 | |
| = 180,000 |
Frequently asked questions
How many micrometers are in 1 millimeter?
1 mm = 1,000 µm. µm = mm × (0.001) × (1,000,000)
How do I convert mm to µm?
µm = mm × (0.001) × (1,000,000)
Is 1 millimeter bigger than 1 micrometer?
1 mm = 1,000 µm.
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