# Ω U+2126 OHM SIGN

Omega-shaped symbol for the ohm, the SI unit of electrical resistance; normally the Greek capital omega is preferred.

| | |
|---|---|
| Character | `Ω` |
| Codepoint | U+2126 |
| Name | OHM SIGN |
| Block | [Letterlike Symbols](https://unicodekit.com/block/letterlike-symbols) |
| Script | Greek |
| Category | Uppercase Letter (Lu) |
| Unicode version | 1.1 |
| HTML | `Ω` `Ω` |
| CSS | `\2126` |
| JavaScript | `\u2126` |
| UTF-8 | E2 84 A6 |
| UTF-16 | 2126 |
| Decomposition | canonical U+03A9 |

## Notes

- SI unit of resistance, named after G. S. Ohm, German physicist
- preferred representation is 03A9

## Related characters

- ℥ [U+2125 OUNCE SIGN](https://unicodekit.com/char/2125)
- ℧ [U+2127 INVERTED OHM SIGN](https://unicodekit.com/char/2127)
- ℤ [U+2124 DOUBLE-STRUCK CAPITAL Z](https://unicodekit.com/char/2124)
- ℨ [U+2128 BLACK-LETTER CAPITAL Z](https://unicodekit.com/char/2128)
- ℣ [U+2123 VERSICLE](https://unicodekit.com/char/2123)
- ℩ [U+2129 TURNED GREEK SMALL LETTER IOTA](https://unicodekit.com/char/2129)
- ™ [U+2122 TRADE MARK SIGN](https://unicodekit.com/char/2122)
- K [U+212A KELVIN SIGN](https://unicodekit.com/char/212A)
- ℡ [U+2121 TELEPHONE SIGN](https://unicodekit.com/char/2121)
- Å [U+212B ANGSTROM SIGN](https://unicodekit.com/char/212B)
- ℠ [U+2120 SERVICE MARK](https://unicodekit.com/char/2120)
- ℬ [U+212C SCRIPT CAPITAL B](https://unicodekit.com/char/212C)

Page: https://unicodekit.com/char/2126 · JSON: https://unicodekit.com/characters/2126