Convert Micrometers to Millimeters
Enter the length in micrometers below to get the value converted to millimeters.
How to Convert Micrometers to Millimeters
To convert a micrometer measurement to a millimeter measurement, multiply the length by the conversion ratio. One micrometer is equal to 0.001 millimeters, so use this simple formula to convert:
The length in millimeters is equal to the micrometers multiplied by 0.001.
Our inch fraction calculator can add micrometers and millimeters together and it also automatically converts the results to US customary, imperial and SI metric values.
Micrometers and millimeters are both units used to measure length. Keep reading to learn more about each unit of measure.
Micrometers
One micrometer is equal to one-millionth (1/1,000,000) of a meter, which is defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.
The micrometer, or micrometre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "micro" is the prefix for 10-6. A micrometer is sometimes also referred to as a micron. Micrometers can be abbreviated as µm, for example 1 micrometer can be written as 1 µm.
To get an idea of the actual physical length of a micrometer, one human hair is 40-50 µm thick, demonstrating how small this unit of measure is.
Millimeters
One millimeter is equal to one-thousandth (1/1,000) of a meter, which is defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.
The millimeter, or millimetre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "milli" is the prefix for 10-3. Millimeters can be abbreviated as mm, for example 1 millimeter can be written as 1 mm.
Millimeters are often represented by the smallest ticks on most metric rulers. To get a reference point of the size, the thickness of a US dime is 1.35mm.
We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.
If you need a ruler you can also download and print our free printable rulers, which include both imperial and metric measurements.
Micrometer Measurements and Equivalent Millimeter Conversions
| Micrometers | Millimeters |
|---|---|
| 1 µm | 0.001 mm |
| 2 µm | 0.002 mm |
| 3 µm | 0.003 mm |
| 4 µm | 0.004 mm |
| 5 µm | 0.005 mm |
| 6 µm | 0.006 mm |
| 7 µm | 0.007 mm |
| 8 µm | 0.008 mm |
| 9 µm | 0.009 mm |
| 10 µm | 0.01 mm |
| 11 µm | 0.011 mm |
| 12 µm | 0.012 mm |
| 13 µm | 0.013 mm |
| 14 µm | 0.014 mm |
| 15 µm | 0.015 mm |
| 16 µm | 0.016 mm |
| 17 µm | 0.017 mm |
| 18 µm | 0.018 mm |
| 19 µm | 0.019 mm |
| 20 µm | 0.02 mm |
| 21 µm | 0.021 mm |
| 22 µm | 0.022 mm |
| 23 µm | 0.023 mm |
| 24 µm | 0.024 mm |
| 25 µm | 0.025 mm |
| 26 µm | 0.026 mm |
| 27 µm | 0.027 mm |
| 28 µm | 0.028 mm |
| 29 µm | 0.029 mm |
| 30 µm | 0.03 mm |
| 31 µm | 0.031 mm |
| 32 µm | 0.032 mm |
| 33 µm | 0.033 mm |
| 34 µm | 0.034 mm |
| 35 µm | 0.035 mm |
| 36 µm | 0.036 mm |
| 37 µm | 0.037 mm |
| 38 µm | 0.038 mm |
| 39 µm | 0.039 mm |
| 40 µm | 0.04 mm |
More Micrometer Length Conversions
- Convert to Miles
- 1 µm is equal to 6.2137E-10 miles
- Convert to Yards
- 1 µm is equal to 1.0936E-6 yards
- Convert to Feet
- 1 µm is equal to 3.2808E-6 feet
- Convert to Inches
- 1 µm is equal to 3.937E-5 inches
- Convert to Kilometers
- 1 µm is equal to 1.0E-9 kilometers
- Convert to Meters
- 1 µm is equal to 1.0E-6 meters
- Convert to Centimeters
- 1 µm is equal to 0.0001 centimeters
- Convert to Nanometers
- 1 µm is equal to 1,000 nanometers
