Greek Symbol
Greek letter

Iota Symbol (ι) — Copy & Paste

Grab the iota greek symbol in one click. Pronunciation: eye-OH-tuh.

ΙUpper
ιLower
Reference

Technical reference

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

Uppercase Iota

Character
Ι
Unicode
U+0399
HTML named
Ι
HTML decimal
Ι
LaTeX
I

Lowercase Iota

Character
ι
Unicode
U+03B9
HTML named
ι
HTML decimal
ι
LaTeX
\iota
Context

Common uses in science & math

“Not one iota”

In English idiom, an iota means a tiny amount—echoing the letter’s small visual footprint.

Inclination & indexing

Math and astronomy sometimes use ι for inclination angles or as a secondary index variable.

Input

How to type Iota

Windows

Grab ι from this page for consistent Unicode.

macOS

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

Word & Google Docs

Paste ι into documents; prefer LaTeX \iota in formal papers.

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

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Iota FAQ

Does iota look like Latin i?

Lowercase ι can resemble a serifless i in some fonts. Use a clear Greek-capable font if the distinction matters.