Η
Capital Eta Symbol (Η)
Copy the Capital Eta symbol Η to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does Η mean?
Η is the capital form of Eta, letter 7 of 24 in the Greek alphabet (pronounced AY-ta). Its lowercase counterpart is η. In science and maths it is used for: Efficiency, viscosity, refractive index. Capital Eta looks the same as the Latin capital H, so LaTeX has no separate command for it — write H (or \mathrm{H}) in math mode.
Codes and properties
| Character | Η |
|---|---|
| Unicode name | GREEK CAPITAL LETTER ETA |
| Code point | U+0397 |
| Decimal | 919 |
| Unicode block | Greek and Coptic |
| HTML entity | Η · Η · Η |
| CSS | \0397 |
| JavaScript / JSON | \u0397 |
| Python | \u0397 or \N{GREEK CAPITAL LETTER ETA} |
| UTF-8 bytes | CE 97 |
| LaTeX | H |
How to type Η
- Copy & paste: press the Copy button above, then paste Η anywhere — Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
0397then press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
0397; or press Ctrl+Cmd+Space and search “greek capital letter eta”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
0397, then Space. - HTML:
Ηrenders as Η. - LaTeX:
Hin math mode.
Frequently asked questions
How do I type Η on Windows?
In Microsoft Word type 0397 and press Alt+X. In any app press Win+. to open the symbol panel, or copy Η from this page.
What is the HTML code for Η?
Use Η or Η (hex) or Η (decimal).
What is the LaTeX command for Η?
Use H in math mode.