Greek Symbol
Greek letter

Zeta Symbol (ζ) — Copy & Paste

Grab the zeta greek symbol in one click. Pronunciation: ZAY-tuh.

ΖUpper
ζLower
Reference

Technical reference

Unicode, HTML entities, and LaTeX — tap the icon beside any value.

Uppercase Zeta

Character
Ζ
Unicode
U+0396
HTML named
Ζ
HTML decimal
Ζ
LaTeX
Z

Lowercase Zeta

Character
ζ
Unicode
U+03B6
HTML named
ζ
HTML decimal
ζ
LaTeX
\zeta
Context

Common uses in science & math

Riemann zeta function

Number theory’s ζ(s) is the Riemann zeta function—one of the most famous uses of the letter.

Damping ratio

In control systems and vibrations, ζ often denotes the damping ratio of a second-order system.

Input

How to type Zeta

Windows

Use this page or the emoji/symbol panel.

macOS

Use this page or search “zeta” in Character Viewer.

Word & Google Docs

ζ pastes cleanly into Word equation-free prose and code comments.

Prefer a full walkthrough? Read how to type Greek letters.

Explore
XiΞξEtaΗηSigmaΣσ

Zeta FAQ

How do I type zeta in LaTeX?

Use \zeta for ζ. Uppercase Ζ looks like Latin Z — type Z in math mode (there is no \Zeta in standard LaTeX).