Lambda symbol
The lambda symbol λ and its close relatives, with the keyboard shortcut for each one.
U+03BB
Lambda symbol and related symbols
Click a symbol to copy it, or read across for the shortcut.
| Symbol | Name | Code | HTML | Windows | Mac | LaTeX |
|---|---|---|---|---|---|---|
| Greek small letter lamda | U+03BB | λ | \lambda | |||
| Greek capital letter lamda | U+039B | Λ | \Lambda | |||
| Latin small letter lambda with stroke | U+019B | ƛ |
Meaning of λ
Lowercase λ stands for wavelength in physics and for anonymous functions in programming. It is also the logo of the Half-Life games.
Common uses: physics, computer science and gaming.
- Unicode name
- Greek Small Letter Lamda
- Code point
- U+03BB
- Windows
- Alt + X in Word
- Mac
- Character Viewer
Typing λ on any device
Copy and paste
Tap the λ above or any symbol in the table. It goes straight to your clipboard.
Windows
In Word, type 03BB and press Alt + X. Anywhere else, press Windows key + . (period) and search the symbols tab.
Mac
No shortcut? Control + Command + Space opens the Character Viewer; search for greek small letter lamda.
iPhone and Android
Copy it from this page, or set up a text replacement in your keyboard settings so a short code like ;sym turns into the symbol.
HTML
Use λ or λ.
LaTeX
Use \lambda in math mode.
Questions people ask
How do I type λ on a keyboard?
Windows has no Alt code for it; use the symbols tab in the Windows key + . panel. On a Mac, open the Character Viewer with Control + Command + Space.
How do I type λ in Word?
Type 03BB and press Alt + X straight after it. Word turns the code into λ.
What does λ mean?
Lowercase λ stands for wavelength in physics and for anonymous functions in programming. It is also the logo of the Half-Life games.
Where is λ used?
Physics, computer science and gaming.
More symbols
Updated November 13, 2026