U+0049 "I" Latin Capital Letter I Unicode Character

U+0049 "I" Latin Capital Letter I is a fundamental glyph in the Latin alphabet, representing the ninth letter of the English and many other Western writing systems. It occupies the code point 0049 in the Unicode standard, which corresponds directly to its ASCII value of 73. This character is visually a vertical straight line, often with serifs at the top and bottom in serif typefaces, and serves as both a vowel in words like "internet" and as the solitary uppercase representation of the first-person singular pronoun in English, such as in the sentence "I am going." Its usage spans formal writing, programming, and digital text, making it one of the most frequently encountered characters in modern communication.

General Properties

Code Point	U+0049
Version Added	1.1
Name	Latin Capital Letter I
Block	Basic Latin
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	I
HTML Hex Encoding	I
UTF-8 Encoding	0x49
UTF-16 Encoding	0x0049
UTF-32 Encoding	0x00000049
C/C++/Java Escape	\u0049

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
East Asian Width	Narrow
Uppercase	Yes
Simple Lowercase Code Point	"i" U+0069 Latin Small Letter I
Lowercase Code Point	"i" U+0069 Latin Small Letter I
Simple Case Folding	"i" U+0069 Latin Small Letter I
Case Folding	"i" U+0069 Latin Small Letter I
Cased	Yes
Changes When Casefolded	Yes
Changes When Casemapped	Yes
Changes When Lowercased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"i" U+0069 Latin Small Letter I
NFKC Simple Casefold	"i" U+0069 Latin Small Letter I
Script	Latin
Script Extensions	Latin
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Upper