Sigma (sum)

Σ is the Unicode character “GREEK CAPITAL LETTER SIGMA” (U+03A3). It is also known as sigma (sum). It belongs to the Greek And Coptic block and was added in Unicode 1.1. Click it to copy, or use the codes below.

Σ codes

UnicodeCode point U+03A3
HTML codeDecimal, works in any HTML page Σ
HTML hexHexadecimal HTML code Σ
HTML entityNamed HTML entity Σ
CSSFor the CSS content property \03A3
JavaScriptEscape in JavaScript strings \u03A3
PythonEscape in Python strings \u03A3
URL encodedPercent-encoded UTF-8 %CE%A3
UTF-8Bytes in UTF-8 CE A3
UTF-16Code units in UTF-16 03A3
Alt codeWindows, number pad Alt + 228

How to type Σ

Copy and paste

Click to copy it, then paste with Ctrl + V (⌘ + V on a Mac) or a long press on phones.

Windows

Hold Alt and type 228 on the number pad (Num Lock on), then let go of Alt.

In Microsoft Word, type 03A3 and press Alt + X.

Mac

Press Control + ⌘ + Space to open the Character Viewer, then search for “sigma (sum)”.

iPhone and Android

Copy it here and paste it. To type it again later, save it as a text replacement (iPhone: Settings › General › Keyboard › Text Replacement; Gboard: Settings › Dictionary › Personal dictionary).

HTML and CSS

Unicode U+03A3. Every format is on the sigma (sum) page.

About Σ

Unicode name
GREEK CAPITAL LETTER SIGMA
Code point
U+03A3 (931)
Block
Greek And Coptic
Category
Uppercase Letter
Unicode version
1.1