Σ
U+03A3 Σ

GREEK CAPITAL LETTER SIGMA

Lu — Uppercase Letter
Greek
Basic Multilingual Plane (BMP)
931

Encoding Table

This table shows the exact bytes used to represent GREEK CAPITAL LETTER SIGMA in each encoding. Unicode encodings (UTF-8, UTF-16, UTF-32) support every character; legacy encodings only cover a limited character set and show "not supported" when a character falls outside their range.

Encoding Bytes (Hex) Bytes (Decimal) Byte count
UTF-8 CE A3 206 163 2
UTF-16 LE A3 03 163 3 2
UTF-16 BE 03 A3 3 163 2
UTF-32 LE A3 03 00 00 163 3 0 0 4
UTF-32 BE 00 00 03 A3 0 0 3 163 4
ASCII not supported
Latin-1 (ISO-8859-1) not supported
Windows-1252 not supported
ISO-8859-2 (Latin-2) not supported
ISO-8859-5 (Cyrillic) not supported
KOI8-R not supported
Shift-JIS 83 B0 131 176 2
EUC-JP A6 B2 166 178 2
GBK A6 B2 166 178 2
Big5 A3 55 163 85 2

Escape Sequences

How to reference this character in source code, markup, and URLs.

Σ
Σ
Σ
\3A3
\u03A3
%CE%A3
\u03a3
931

View the glyph in different fonts and scripts on our sibling site.

View U+03A3 on CharLookup.com ↗

UTF-8 Binary Breakdown

UTF-8 encodes this character as 2 bytes. The leading 110 prefix on byte 1 signals a 2-byte sequence. Bytes 2+ begin with 10 to mark them as continuation bytes.

Byte 1
1 1 0 0 1 1 1 0
CE
·
Byte 2
1 0 1 0 0 0 1 1
A3
UTF-8: CE A3 · 2 bytes · Codepoint U+03A3

Unicode Properties

Introduced in Unicode 1.1
L — Left-to-Right
Lowercase: U+03C3 GREEK SMALL LETTER SIGMA

Nearby Characters in Greek and Coptic