Millimeters to Micrometers Converter
Use this converter to easily convert between Millimeters and Micrometers (mm to μm). Micrometers are also known as Microns.
- How many Micrometers equal one Millimeter?
- Difference between Millimeters and Micrometers
- How to convert Millimeters to Micrometers
- mm to μm conversion table
How many Micrometers equal one Millimeter?
Two of the units derived from the basic measurement unit of the metric system – the meter – are the millimeter and the micrometer. Their official abbreviations accepted by the International System of Units are respectively mm and µm. A micrometer is equal to 1/1,000 of a mm, so there are 1,000 µm in 1 millimeter.
Difference between Millimeters and Micrometers
The millimeter is a measurement unit used for the purpose of tracking small distances. Scientific, engineering, and mechanical tasks rely on accuracy and the mm is largely used when performing such.
Its definition – the path light travels in 1/299,792,458,000 seconds in vacuum – stems from the one of the meter. A millimeter is typically the smallest division marked on a ruler.
On the other hand, the micrometer is equivalent to 0.001 of a millimeter. It being of such small scale predetermines its application. The µm is usually used when measuring radiation wavelengths or cell sizes. The radius of a human hair ranges between 9 and 90 µm, while a droplet of mist, fog or cloud is about 10 µm in size.
The micrometer is also referred to as a micron, even though that term is not accepted by the SI. Using micron to name the unit is sometimes necessary in order to avoid confusion with the measuring tool called micrometer.
How to convert Millimeters to Micrometers
In order to convert millimeters to micrometers you can use the formula:
mm x 1,000 = µm,
or simply shift the decimal point in the millimeter three places to the right.
Mm to μm conversion example
Sample task: convert 30 millimeters to micrometers. Solution:
mm * 1000 = μm
30 mm * 1,000 = 30,000 μm
30 mm is equal to 30,000 μm
mm to μm conversion table
|1 mm||1,000 μm|
|2 mm||2,000 μm|
|3 mm||3,000 μm|
|4 mm||4,000 μm|
|5 mm||5,000 μm|
|6 mm||6,000 μm|
|7 mm||7,000 μm|
|8 mm||8,000 μm|
|9 mm||9,000 μm|
|10 mm||10,000 μm|
|20 mm||20,000 μm|
|30 mm||30,000 μm|
|40 mm||40,000 μm|
|50 mm||50,000 μm|
|60 mm||60,000 μm|
|70 mm||70,000 μm|
|80 mm||80,000 μm|
|90 mm||90,000 μm|
|100 mm||100,000 μm|
|200 mm||200,000 μm|
|300 mm||300,000 μm|
|400 mm||400,000 μm|
|500 mm||500,000 μm|
|600 mm||600,000 μm|
|700 mm||700,000 μm|
|800 mm||800,000 μm|
|900 mm||900,000 μm|
|1,000 mm||1,000,000 μm|
 NIST Special Publication 330 (2008) - "The International System of Units (SI)", edited by Barry N.Taylor and Ambler Thompson
 International Organization for Standardization (1993). ISO Standards Handbook: Quantities and units (3rd edition). Geneva: ISO. ISBN 92-67-10185-4.
Cite this converter & page
If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "Mm to micrometer Converter", [online] Available at: https://www.gigacalculator.com/converters/convert-mm-to-micrometer.php URL [Accessed Date: 06 Dec, 2022].