Sigma symbol

Official name

GREEK CAPITAL LETTER SIGMA

Unicode block

Greek and Coptic

Added in

Unicode 1.1

HTML

Σ

HTML hex

Σ

CSS content

\3A3

JavaScript

\u{3A3}

UTF-8 bytes

CE A3

Keywords

mathematics, equation, science

Categories

Maths

The Unicode standard defines this character, but your device’s fonts decide how it looks, so it may differ on other screens.