Language

Greek Small Letter Mu

U+03BCGreek and Coptic

Also known as muGreek mulowercase mu

Copy and paste μ. The Greek Small Letter Mu character has Unicode code point U+03BC and decimal HTML code μ.

Symbol codes

Unicode
U+03BC
HTML Code
μ
CSS Code
\3BC
HTML Entity
μ
HEX Code
μ

Technical properties

Unicode 18.0.0

Code point
U+03BC
Decimal
956
Unicode name
GREEK SMALL LETTER MU
Block
Greek and Coptic · U+0370–U+03FF
General category
Lowercase Letter (Ll)
Script
Greek
Introduced
Unicode 1.1
JavaScript
"\u03BC"

Appears in

About Greek Small Letter Mu

Mu is the twelfth letter of the Greek alphabet; this character is the lowercase Greek letter, distinct from the compatibility micro sign at U+00B5.

μ is encoded in Unicode as code point U+03BC (decimal 956). Its official Unicode name is GREEK SMALL LETTER MU.

It belongs to the Greek and Coptic block (U+0370–U+03FF), its General Category is Lowercase Letter (Ll), and it was added in Unicode 1.1, released in 1993. Unicode assigns it to the Greek script.

Common uses

  • Writing Greek text
  • Serving as a variable or label in scientific and mathematical notation

Examples

Greek letter
μ

Sources: Unicode Character Database 18.0.0, the HTML Standard’s list of named character references, and Unicode’s code page mappings.

How to type or insert Greek Small Letter Mu

Any device
Select Copy symbol, then paste with Ctrl+V, or ⌘+V on a Mac.
Microsoft Word
Type 03BC, then press Alt+X.
macOS Character Viewer
Press Control+⌘+Space and search for “greek small letter mu”.
Linux (GTK and IBus)
Press Ctrl+Shift+U, type 03bc, then press Space.
HTML
μ or μ. In a UTF-8 page you can also paste the character itself.
CSS
content: "\3BC"; in a ::before or ::after rule.
JavaScript
"\u03BC"

Common questions about Greek Small Letter Mu

What is the Greek Small Letter Mu symbol?

Mu is the twelfth letter of the Greek alphabet; this character is the lowercase Greek letter, distinct from the compatibility micro sign at U+00B5. In Unicode it is U+03BC, officially named GREEK SMALL LETTER MU. It is also known as mu, Greek mu, and lowercase mu.

Is μ the same as the micro sign µ?

They look alike but are different characters. μ (U+03BC) is the Greek letter, and µ (U+00B5) is the micro sign inherited from older Latin-1 text. Unicode's compatibility normalization turns µ into μ.

How do I copy and paste the Greek Small Letter Mu symbol?

Select Copy symbol at the top of this page, then paste with Ctrl+V on Windows and Linux or ⌘+V on a Mac. On a phone, tap Copy symbol, then touch and hold where you want it and choose Paste. μ pastes as ordinary text, so it works in documents, messages, and code.

How do I type the Greek Small Letter Mu symbol on Windows?

In Microsoft Word, type 03BC and press Alt+X to turn the code into μ. In any app, open Character Map from the Start menu, search for “greek small letter mu”, then select and copy the character.

How do I type the Greek Small Letter Mu symbol on a Mac?

Press Control+⌘+Space to open the Character Viewer, search for “greek small letter mu”, and double-click the result to insert it.

How do I type the Greek Small Letter Mu symbol on an iPhone or Android phone?

The simplest way is to copy it from this page and paste it where you need it. If you use it often, save it as a text shortcut: on iPhone, go to Settings > General > Keyboard > Text Replacement; with Gboard on Android, go to Gboard settings > Dictionary > Personal dictionary.

Can I use the Greek Small Letter Mu symbol in Word, Google Docs, and social media?

Yes. μ is a standard Unicode character, so you can paste it into Microsoft Word, Google Docs, emails, and posts or bios on Instagram, X, Facebook, and TikTok. In Google Docs you can also choose Insert > Special characters and search for “greek small letter mu”. In Word, choose Insert > Symbol > More Symbols, set from to Unicode (hex), and enter 03BC as the character code.

Is the Greek Small Letter Mu symbol an emoji?

No. μ is a text symbol, not an emoji. It takes the color and size of the surrounding text, and its exact shape depends on the font.

Why does the Greek Small Letter Mu symbol show as a box or question mark?

An empty box or a question mark means the font on that device has no glyph for μ. The character is still there: it appears correctly wherever a font covers Unicode’s Greek and Coptic block, and free font families such as Google Noto cover nearly all of Unicode.

What are the HTML and CSS codes for the Greek Small Letter Mu symbol?

In HTML, write μ (decimal) or μ (hexadecimal), or the named entity μ. In CSS, use content: "\3BC"; in a ::before or ::after rule, and in JavaScript "\u03BC". See all HTML codes.