Millimeters to Micrometers Converter
Convert millimeters (mm) to micrometers (µm), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Convert a length from one unit to another. For inches, feet and yards you also get feet and inches with a tape-measure fraction.
Show the working
- 1 mm = 1000 µm
- 1 × 1000 = 1000 µm
How to convert millimeters to micrometers
1 mm = 1000 µm, so multiply by 1000 to go from millimeters to micrometers. Going the other way, 1 µm = 0.001 mm.
µm = mm × 1000 mm = µm × 0.001
Worked example:
1 mm = 1000 µm 5 × 1000 = 5000 µm
Millimeters to micrometers table
| Millimeters | Micrometers |
|---|---|
| 1 mm | 1000 µm |
| 2 mm | 2000 µm |
| 3 mm | 3000 µm |
| 4 mm | 4000 µm |
| 5 mm | 5000 µm |
| 6 mm | 6000 µm |
| 7 mm | 7000 µm |
| 8 mm | 8000 µm |
| 9 mm | 9000 µm |
| 10 mm | 10000 µm |
| 15 mm | 15000 µm |
| 20 mm | 20000 µm |
| 25 mm | 25000 µm |
| 30 mm | 30000 µm |
| 40 mm | 40000 µm |
| 50 mm | 50000 µm |
| 75 mm | 75000 µm |
| 100 mm | 100000 µm |
| 250 mm | 250000 µm |
| 500 mm | 500000 µm |
| 1000 mm | 1000000 µm |
About the units
- Millimeters (mm)
- Millimeters, a metric unit. Definition: BIPM SI Brochure (SI prefixes).
- Micrometers (µm)
- Micrometers, a metric unit. Definition: BIPM SI Brochure (SI prefixes).