µ Micro Sign

All symbols
Units · ScienceU+00B5 · Latin-1 Supplement
µ

Micro Sign

U+00B5 · decimal 181 · Latin-1 Supplement

Every way to write it

7 forms
HTML entity

µ

A named entity — readable, and safe in any HTML document without declaring a charset.

HTML numeric

µ

The numeric form works everywhere a named one does, and exists for every character.

CSS content

\00B5

For a content property in a ::before or ::after rule. No semicolon, and mind the trailing space.

JavaScript

\u00B5

Valid in a JavaScript or JSON string literal, so it survives files and pipelines that are not UTF-8 clean.

Python

\u00B5

The escape for a Python string literal.

URL

%C2%B5

Percent-encoded UTF-8, for a query string or a path segment.

UTF-8 bytes

C2 B5

2 bytes on the wire. Seeing these as separate garbled characters means something decoded them as single-byte text.

Typing it without copying

system picker
macOS

Control + Command + Space, then search micro sign

Windows

Character Map or Alt + 181

Groups it belongs to

Characters near it

8
Code pointU+00B5
EntityNamed
UTF-82 bytes
ASCIINo