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Micro sign µ — HTML code and how to type it

The micro sign µ is µ in HTML and U+00B5 in Unicode. Copy any form below, or type it with Alt + 0181 on Windows.

Updated

Characterµ
HTML named entityµ
HTML decimalµ
HTML hexµ
UnicodeU+00B5
CSS content"\00B5"
JavaScript"\u00B5"
URL encoded%C2%B5
UTF-8 bytesC2 B5

When to use it

The SI prefix for one millionth: µm, µs. The Greek letter μ (U+03BC) looks the same.

In HTML, CSS and JavaScript

<p>&micro;</p>           <!-- or the character itself in a UTF-8 page -->

.note::before { content: "\00B5"; }

const s = "\u00B5";

In a page saved as UTF-8 (the default today) you can paste the character directly; the entity is only needed when it must survive a non-UTF-8 system. Encode or decode whole texts with the HTML Entity Encoder.

How to type micro sign

  • Windows: hold Alt and type 0181 on the numeric keypad.
  • Mac: Option + M (US keyboard layout).
  • Linux: Ctrl + Shift + U, then B5 and Enter.
HTML Entity EncoderEscape < > & " so text is safe to show in HTML, convert accents and symbols to named or numeric entities, or decode entity-filled HTML back to plain text.
Open the tool

Frequently asked questions

What is the HTML code for the micro sign?
&micro; (named), &#181; (decimal) or &#xB5; (hex). All three produce the same character.
What is the Unicode for the micro sign?
U+00B5. In CSS write "\00B5" and in JavaScript "\u00B5".
How do I type the micro sign on a keyboard?
On Windows hold Alt and type 0181 on the numpad. On a Mac press Option + M.