Technical information

Symbol
NameOhm sign
Unicode numberU+2126
CategoryElectrical resistanceLetterlike Symbols
DescriptionThe 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 EntityΩ
HTML Entity (hex)Ω
URL Escape Code%E2%84%A6
UTF-8 (hex)0xE2 0x84 0xA6
UTF-8 (binary)11100010:10000100:10100110
UTF-160x2126
UTF-320x00002126

Source Code

C, C++, and Java"\u2126"
CSS Code\2126
JavaScript"\u2126"
Perl\x{2126}
Python 2u"\u2126"
Python 3\u2126
Ruby\u{2126}

Preview

This Unicode character looks like this Ω in sentence and in bold like this and in italic like this .

Font size:

12px
16px
20px
28px
36px
48px
72px

CSS Property: font-weight

100
200
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400
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800
900

HTML Forms and Input

input
disabled input
input-group
select
button
button

Code examples in HTML and CSS

<span>&#8486;</span>

            
span {
    content: "\2126";
}

The symbol in different fonts

-apple-system
Apple Color Emoji
Arial
BlinkMacSystemFont
Courier New
Georgia
Droid Sans
Helvetica
Noto Sans
Oxygen
Roboto
"Segoe UI"
sans-serif
Segoe UI Emoji
Segoe UI Symbol
system-ui
Times New Roman
Ubuntu
Verdana

References