U+03DF "ϟ" Greek Small Letter Koppa Unicode Character

Unicode Version 18.0

ϟ
Source: Noto Sans Source: Browser Default

U+03DF "ϟ" Greek Small Letter Koppa is a numeric symbol derived from the archaic Greek alphabet, where it originally represented the sound /k/ before back vowels and served as the numeral for 90 in the ancient Greek acrophonic numbering system. In modern contexts, it is rarely used in standard Greek writing but appears in scholarly editions of classical texts, mathematical notation, and as a stylistic character in various digital encodings. Its uppercase counterpart is U+03DE "Ϟ", and the character belongs to the Greek and Coptic block of Unicode.

Encodings

HTML Decimal Encoding
ϟ
HTML Hex Encoding
ϟ
UTF-8 Encoding
0xCF 0x9F
UTF-16 Encoding
0x03DF
UTF-32 Encoding
0x000003DF
C/C++/Java Escape
\u03df