1 millimeter (mm) = 1,000 micrometers (µm). To convert, multiply by 1,000: µm = mm × 1,000. For example, 5 mm = 5,000 µm.
µm = mm × 1,000
Millimeters to micrometers table
| Millimeters (mm) | Micrometers (µm) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
The two units
Millimeter (mm). One thousandth of a meter.
Micrometer (µm). One millionth of a meter, also called a micron.
Convert millimeters to other units
- Millimeters to meters — 1 mm = 0.001 m
- Millimeters to kilometers — 1 mm = 0.000001 km
- Millimeters to centimeters — 1 mm = 0.1 cm
- Millimeters to nanometers — 1 mm = 1,000,000 nm
- Millimeters to miles — 1 mm = 6.213712e-7 mi
- Millimeters to yards — 1 mm = 0.0010936133 yd
- Millimeters to feet — 1 mm = 0.0032808399 ft
- Millimeters to inches — 1 mm = 0.0393700787 in
- Millimeters to nautical miles — 1 mm = 5.399568e-7 nmi
Convert other units to micrometers
Questions people ask
- How many micrometers are in a millimeter?
- 1,000.
- How do you convert millimeters to micrometers?
- µm = mm × 1,000. It is the same as dividing by 0.001.
- How do you convert micrometers back to millimeters?
- mm = µm ÷ 1,000. See micrometers to millimeters.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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