AaLettersLettersGreek and CopticReviewed 2026-08-08

GREEK CAPITAL LETTER SIGMA

Greek capital letter sigma, used for summation in notation.

U+03A3 · 15.1.0 · Greek script

About this character

Sigma is the eighteenth Greek letter and a common symbol for summation in mathematical notation.

Copy formats

FormatValueAction
UTF-8CE A3
UTF-1603A3
HTMLΣ / Σ
CSS\0003A3
JavaScript\u03a3
Python\u03a3
URL%CE%A3

Character

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