Ω

Technical information

Symbol	Ω
Name	Greek capital letter omega
Unicode number	U+03A9
Category	Greek capital letter normal

Description

The Unicode character Ω, or U+03A9, is known as the "Greek Capital Letter Omega". It is part of the "Greek and Coptic" block and belongs to the "Letter, Uppercase" category in the Unicode standard. The Greek capital letter Omega is the last letter of the Greek alphabet, and is used in various scientific and mathematical contexts. For instance, in physics, the Omega symbol is used to represent Ohm - the unit of electrical resistance. Furthermore, in mathematics and computer science, it is often used to denote the worst-case or asymptotic upper bound of a function.

Encoding

HTML Entity	Ω
HTML Entity (hex)	Ω
HTML Entity (named)	Ω
URL Escape Code	%CE%A9
UTF-8 (hex)	0xCE 0xA9
UTF-8 (binary)	11001110:10101001
UTF-16	0x03A9
UTF-32	0x000003A9

Source Code

C, C++, and Java	"\u03A9"
CSS Code	\03A9
JavaScript	"\u03A9"
Perl	\x{03A9}
Python 2	u"\u03A9"
Python 3	\u03A9
Ruby	\u{03A9}

Preview

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

CSS Property: font-weight

100

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800

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HTML Forms and Input

input

disabled input

input-group

select

button

Code examples in HTML and CSS

<span>&#937;</span>

span {
    content: "\03A9";
}

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

Ω