Mu symbol (μ)
U+03BC · GREEK SMALL LETTER MU · Unicode 1.1 (1993)
How to type μ
Windows
No Alt code
μ is not in the Windows code pages 1252 or 437, so it has no Alt code. Use one of the methods below or copy it from this page.
Word and Outlook: Alt + X
03BC Alt+X
Type 03BC and press Alt+X right after it: Word turns the code into μ. Press Alt+X again to turn it back into the code.
Emoji and symbols panel (Windows 10 and 11)
Win+.
Press Win + full stop (.) to open the panel, go to the Symbols tab (Ω) and pick μ.
No numeric keypad on your laptop? See the other ways in our Alt codes guide.
Mac
Character Viewer
Ctrl+⌘ Cmd+Space
Press Ctrl+⌘+Space (or the Globe key + E), search for “mu symbol” and click μ to insert it.
iPhone
Make a shortcut (Text Replacement)
Turn a short word into μ once and type it in any app:
- Copy μ from this page.
- Open Settings › General › Keyboard › Text Replacement and tap +.
- Paste μ as the Phrase and type a Shortcut, for example ;mu.
- Now type ;mu anywhere: the keyboard suggests μ.
Android
Make a shortcut (Gboard personal dictionary)
Teach your keyboard a short word that turns into μ:
- Copy μ from this page.
- Open Gboard settings › Dictionary › Personal dictionary, choose your language and tap +.
- Paste μ as the word and type a shortcut, for example ;mu.
- Type ;mu in any app and tap μ in the suggestions.
Linux
Unicode input
Ctrl+Shift+U 03bc Enter
Press Ctrl+Shift+U, type 03bc and press Enter or Space. Works in GTK apps and with IBus (GNOME, Ubuntu, Fedora).
What μ means and how it is used
Mu μ is the Greek letter used for the micro prefix (µm, µs), the coefficient of friction and the population mean in statistics. Unicode also has a separate micro sign µ from older encodings; they look alike and normalization treats them as the same, so search for either.
The official Unicode name of μ is GREEK SMALL LETTER MU, code point U+03BC. You will find it in the Greek and Coptic block; it was added in Unicode 1.1 (1993).
It sits in the greek with 69 symbols, among them α β γ Δ θ.
Codes for HTML, CSS and JavaScript
Tap Copy next to the code you need.
| HTML entity | μ | |
|---|---|---|
| HTML decimal | μ | |
| HTML hex | μ | |
| CSS | content: "\03BC"; | |
| JavaScript | \u03BC | |
| URL | %CE%BC | |
| UTF-8 bytes | CE BC | |
| Unicode | U+03BC |
Will it show on my friend's phone?
Very likely yes: μ dates from Unicode 1.1 (1993), so every current system has a font for it.
Checking your device…
Don't confuse μ with
These look alike but are different characters. Search, sorting and screen readers treat them differently, so copy the one you mean.
- μMu symbolU+03BC · GREEK SMALL LETTER MU
- Micro symbolU+00B5 · MICRO SIGN · Latin-1 Supplement
- 𝛍U+1D6CD · Mathematical Alphanumeric Symbols
- 𝜇U+1D707 · Mathematical Alphanumeric Symbols
- 𝝁U+1D741 · Mathematical Alphanumeric Symbols
- 𝝻U+1D77B · Mathematical Alphanumeric Symbols
- 𝞵U+1D7B5 · Mathematical Alphanumeric Symbols
Names in other languages
What μ is called in the 12 languages of this site (Unicode CLDR and our editors). Tap a name to open that language's page.
| Language | Name |
|---|---|
| English | Mu symbol |
| Português | Símbolo mi (mu) |
| Español | Símbolo mu |
| Italiano | Simbolo mu |
| Français | Symbole mu |
| Deutsch | My-Zeichen |
| Türkçe | Mü sembolü |
| Bahasa Indonesia | Simbol mu |
| Polski | Symbol mi |
| Русский | Символ мю |
| 日本語 | ミュー記号 |
| 한국어 | 뮤 기호 |
Related symbols
All Greek →Questions people ask
How do I type μ on a laptop without a numeric keypad?
On Windows press Win + full stop (.) and pick μ in the Symbols tab, or in Word type 03BC and press Alt+X.
What is the difference between μ and µ?
μ is the mu symbol (U+03BC). µ is a different character: micro symbol (U+00B5, Latin-1 Supplement block). They can look alike, but computers treat them as different letters, so a search for one will not find the other.
How do I type μ on an iPhone?
The iPhone keyboard has no key for μ. Copy it here, then add it in Settings › General › Keyboard › Text Replacement with a shortcut like ;mu.
What is the HTML code for the mu symbol?
Use the entity μ or the numeric code μ (hex μ). In CSS write \03BC, in JavaScript \u03BC.
Will μ show on every phone?
Very likely yes: μ dates from Unicode 1.1 (1993), so every current system has a font for it.