Sigma (standard deviation)

σ is the Unicode character “GREEK SMALL LETTER SIGMA” (U+03C3). It is also known as sigma (standard deviation). 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+03C3
HTML codeDecimal, works in any HTML page σ
HTML hexHexadecimal HTML code σ
HTML entityNamed HTML entity σ
CSSFor the CSS content property \03C3
JavaScriptEscape in JavaScript strings \u03C3
PythonEscape in Python strings \u03C3
URL encodedPercent-encoded UTF-8 %CF%83
UTF-8Bytes in UTF-8 CF 83
UTF-16Code units in UTF-16 03C3
Alt codeWindows, number pad Alt + 229

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 229 on the number pad (Num Lock on), then let go of Alt.

In Microsoft Word, type 03C3 and press Alt + X.

Mac

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

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+03C3. Every format is on the sigma (standard deviation) page.

About σ

Unicode name
GREEK SMALL LETTER SIGMA
Code point
U+03C3 (963)
Block
Greek And Coptic
Category
Lowercase Letter
Unicode version
1.1