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Micron or mu in Word

3 April 2021

How to type the micron/micrometer symbol in Word.

Stuart H has an AutoCorrect suggestion:

” I need to use the symbol μ for micron (1/000 mm) and use mu for this. “

The Micrometre / Micrometer is one-millionth of a meter.

The μ character is the Greek letter ‘mu‘ which is the standard prefix for millionth. It’s the only SI / metric prefix which isn’t on the standard keyboard.

There are two Micron/Mu characters, they look very similar in most fonts:

Micron µ

Micron µ – the proper SI Micro/Micron symbol. Unicode U+00B5 or B5 then Alt + X in Word for Windows.

Mu μ

Mu μ, – lower case Greek letter – Unicode U+03BC or 3bc then Alt + X in Word for Windows.

Either are available in Insert | Symbol.

Enter the character into a document via the Insert | Symbol dialog.

Once in a document you can copy it to AutoCorrect and make your own shortcut.

Excel and PowerPoint

use Insert | Symbol

Micron or mu in Word

Micron µ

Mu μ

Excel and PowerPoint

See Also