ψ
Psi Symbol (ψ)
Copy the Psi symbol ψ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does ψ mean?
ψ is the lowercase form of Psi, letter 23 of 24 in the Greek alphabet (pronounced SY / PSY). Its capital counterpart is Ψ. In science and maths it is used for: Wave function in quantum mechanics, stream function.
Codes and properties
| Character | ψ |
|---|---|
| Unicode name | GREEK SMALL LETTER PSI |
| Code point | U+03C8 |
| Decimal | 968 |
| Unicode block | Greek and Coptic |
| HTML entity | ψ · ψ · ψ |
| CSS | \03C8 |
| JavaScript / JSON | \u03C8 |
| Python | \u03C8 or \N{GREEK SMALL LETTER PSI} |
| UTF-8 bytes | CF 88 |
| LaTeX | \psi |
How to type ψ
- Copy & paste: press the Copy button above, then paste ψ anywhere — Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
03C8then press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
03C8; or press Ctrl+Cmd+Space and search “greek small letter psi”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
03c8, then Space. - HTML:
ψrenders as ψ. - LaTeX:
\psiin math mode (amssymb package for some symbols).
Frequently asked questions
How do I type ψ on Windows?
In Microsoft Word type 03C8 and press Alt+X. In any app press Win+. to open the symbol panel, or copy ψ from this page.
What is the HTML code for ψ?
Use ψ or ψ (hex) or ψ (decimal).
What is the LaTeX command for ψ?
Use \psi in math mode.