# τ U+03C4 GREEK SMALL LETTER TAU

Lowercase Greek tau, a t-like letter used for torque, time constants, and the circle constant tau equal to two pi.

| | |
|---|---|
| Character | `τ` |
| Codepoint | U+03C4 |
| Name | GREEK SMALL LETTER TAU |
| Block | [Greek and Coptic](https://unicodekit.com/block/greek-and-coptic) |
| Script | Greek |
| Category | Lowercase Letter (Ll) |
| Unicode version | 1.1 |
| HTML | `τ` `τ` |
| CSS | `\3C4` |
| JavaScript | `\u03C4` |
| UTF-8 | CF 84 |
| UTF-16 | 03C4 |

## Related characters

- σ [U+03C3 GREEK SMALL LETTER SIGMA](https://unicodekit.com/char/03C3)
- υ [U+03C5 GREEK SMALL LETTER UPSILON](https://unicodekit.com/char/03C5)
- ς [U+03C2 GREEK SMALL LETTER FINAL SIGMA](https://unicodekit.com/char/03C2)
- φ [U+03C6 GREEK SMALL LETTER PHI](https://unicodekit.com/char/03C6)
- ρ [U+03C1 GREEK SMALL LETTER RHO](https://unicodekit.com/char/03C1)
- χ [U+03C7 GREEK SMALL LETTER CHI](https://unicodekit.com/char/03C7)
- π [U+03C0 GREEK SMALL LETTER PI](https://unicodekit.com/char/03C0)
- ψ [U+03C8 GREEK SMALL LETTER PSI](https://unicodekit.com/char/03C8)
- ο [U+03BF GREEK SMALL LETTER OMICRON](https://unicodekit.com/char/03BF)
- ω [U+03C9 GREEK SMALL LETTER OMEGA](https://unicodekit.com/char/03C9)
- ξ [U+03BE GREEK SMALL LETTER XI](https://unicodekit.com/char/03BE)
- ϊ [U+03CA GREEK SMALL LETTER IOTA WITH DIALYTIKA](https://unicodekit.com/char/03CA)

Page: https://unicodekit.com/char/03C4 · JSON: https://unicodekit.com/characters/03C4