Tau Symbol
Copy the uppercase or lowercase tau symbol (Τ τ) and find its Unicode codepoint, HTML entity, and LaTeX command.
Tau Symbol
Click the symbol to copy it
Formats
Character
τ
Unicode
U+03C4
HTML entity
τ
HTML decimal
τ
LaTeX
\tau
JS / JSON escape
τ
Click any row to copy that exact string.
Common Uses
| Field | Example | Meaning |
|---|---|---|
| Physics | Torque, the rotational equivalent of force. | |
| Math / physics | Circle constant convention: one full turn equals 1τ. | |
| Statistics | Kendall's tau, a rank correlation coefficient from -1 to 1. | |
| Particle physics | Average time before a particle decays. | |
| Electronics | Time constant of an RC circuit's charge or discharge curve. |
Degrees to tau converter
Enter an angle in degrees to see it as a fraction of τ (2π), since one full turn equals 1τ under the circle-constant convention.
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Summary
Copy the uppercase or lowercase tau symbol (Τ τ) and find its Unicode codepoint, HTML entity, and LaTeX command.
How it works
- Click the large tau symbol to copy it to your clipboard.
- Switch between uppercase (Τ) and lowercase (τ) with the toggle.
- Click any row in the formats list to copy that exact string: Unicode, HTML entity, or LaTeX.
- Paste the symbol anywhere: documents, spreadsheets, code, or chat.
Use cases
- Write torque in a physics equation, such as tau = r x F.
- Reference the circle constant tau = 2 pi when working with turns instead of radians.
- Report Kendall's tau rank correlation coefficient in a statistics writeup.
- Label a particle's mean lifetime in a nuclear or particle physics note.
- Denote proper time in a special relativity derivation.
- Mark the time constant of an RC circuit, tau = RC, in an electronics report.
- Copy the correct LaTeX command (\tau) for a paper or lab report instead of typing it from memory.
- Insert tau into a document without a special keyboard layout.
Frequently Asked Questions
Last updated: 2026-07-22 ·
Reviewed by Nham Vu