Convert Millimeters to micrometers
1 millimeter = 1,000 micrometers · µm = mm × 1,000
When you need this conversion
Manufacturing tolerances, coating thickness, and filtration ratings are specified in micrometers, while the parts themselves are dimensioned in millimeters. Air filter and water filter ratings are a common consumer case.
Millimeters to micrometers conversion table
| Millimeters (mm) | Micrometers (µm) |
|---|---|
| 1 mm | 1,000 µm |
| 2 mm | 2,000 µm |
| 3 mm | 3,000 µm |
| 5 mm | 5,000 µm |
| 10 mm | 10,000 µm |
| 15 mm | 15,000 µm |
| 20 mm | 20,000 µm |
| 25 mm | 25,000 µm |
| 50 mm | 50,000 µm |
| 75 mm | 75,000 µm |
| 100 mm | 100,000 µm |
| 250 mm | 250,000 µm |
| 500 mm | 500,000 µm |
| 1,000 mm | 1,000,000 µm |
The formula
µm = mm × 1,000Because both units measure length, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Micrometers to millimeters →Related length conversions
- Centimeters to inches
- Centimeters to feet
- Meters to kilometers
- Kilometers to meters
- Inches to centimeters
- Feet to centimeters
- Feet to yards
- Yards to feet
- Millimeters to centimeters
- Millimeters to meters
- Millimeters to kilometers
- Millimeters to inches
Frequently asked questions
- How many micrometers are in a millimeter?
- There are 1,000 micrometers in 1 millimeter. The formula is µm = mm × 1,000.
- How do you convert millimeters to micrometers?
- Use the formula µm = mm × 1,000. For example, 10 millimeters equals 10,000 micrometers.
- Is the millimeters to micrometers conversion exact?
- Yes. Millimeters and micrometers are both units of length, related by an exact defined factor. Displayed results are rounded for readability.
- What is mm short for?
- mm is the standard symbol for millimeter (also written as millimetres). µm is the symbol for micrometer.