ι

Iota Symbol (ι)

Copy the Iota symbol ι to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.

What does ι mean?

ι is the lowercase form of Iota, letter 9 of 24 in the Greek alphabet (pronounced eye-OH-ta). Its capital counterpart is Ι. In science and maths it is used for: A very small amount; an index in some notations.

Codes and properties

Characterι
Unicode nameGREEK SMALL LETTER IOTA
Code pointU+03B9
Decimal953
Unicode blockGreek and Coptic
HTML entityι · ι · ι
CSS\03B9
JavaScript / JSON\u03B9
Python\u03B9 or \N{GREEK SMALL LETTER IOTA}
UTF-8 bytesCE B9
LaTeX\iota

How to type ι

  • Copy & paste: press the Copy button above, then paste ι anywhere — Word, Google Docs, email, chat or code.
  • Windows (Word, WordPad, Outlook): type 03B9 then press Alt+X. In any app, Win+. opens the symbol panel.
  • Mac: switch to the Unicode Hex Input keyboard, hold Option and type 03B9; or press Ctrl+Cmd+Space and search “greek small letter iota”.
  • Linux (GTK/IBus): press Ctrl+Shift+U, type 03b9, then Space.
  • HTML: ι renders as ι.
  • LaTeX: \iota in math mode (amssymb package for some symbols).

Frequently asked questions

How do I type ι on Windows?

In Microsoft Word type 03B9 and press Alt+X. In any app press Win+. to open the symbol panel, or copy ι from this page.

What is the HTML code for ι?

Use ι or ι (hex) or ι (decimal).

What is the LaTeX command for ι?

Use \iota in math mode.

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