Ω
Technical information
| Symbol | Ω | |
| Name | Ohm sign | |
| Unicode number | U+2126 | |
| Category | Electrical resistanceLetterlike Symbols | |
| Description | The Unicode character Ω, or U+2126, is known as the "Ohm Sign". It is part of the "Letterlike Symbols" block and is categorized under the "Letter, Uppercase" category in the Unicode standard. The Ohm sign represents the unit of electrical resistance in the International System of Units (SI). It was named after George Simon Ohm who formulated Ohm's law, which states that the current passing through a conductor between two points is directly proportional to the voltage across the two points. This character is frequently used in fields such as physics and engineering. |
Encoding
| HTML Entity | Ω | |
| HTML Entity (hex) | Ω | |
| URL Escape Code | %E2%84%A6 | |
| UTF-8 (hex) | 0xE2 0x84 0xA6 | |
| UTF-8 (binary) | 11100010:10000100:10100110 | |
| UTF-16 | 0x2126 | |
| UTF-32 | 0x00002126 |
Source Code
| C, C++, and Java | "\u2126" | |
| CSS Code | \2126 | |
| JavaScript | "\u2126" | |
| Perl | \x{2126} | |
| Python 2 | u"\u2126" | |
| Python 3 | \u2126 | |
| Ruby | \u{2126} |
Preview
This Unicode character looks like this Ω in sentence and in bold like this Ω and in italic like this Ω.
input-group
Font size:
Ω
12px
Ω
16px
Ω
20px
Ω
28px
Ω
36px
Ω
48px
Ω
72px
CSS Property: font-weight
Ω
100
Ω
200
Ω
300
Ω
400
Ω
500
Ω
600
Ω
700
Ω
800
Ω
900
HTML Forms and Input
input
disabled input
Ω
select
button
button
Code examples in HTML and CSS
<span>Ω</span>
span {
content: "\2126";
}The symbol in different fonts
Ω
-apple-system
Ω
Apple Color Emoji
Ω
Arial
Ω
BlinkMacSystemFont
Ω
Courier New
Ω
Georgia
Ω
Droid Sans
Ω
Helvetica
Ω
Noto Sans
Ω
Oxygen
Ω
Roboto
Ω
"Segoe UI"
Ω
sans-serif
Ω
Segoe UI Emoji
Ω
Segoe UI Symbol
Ω
system-ui
Ω
Times New Roman
Ω
Ubuntu
Ω
Verdana