Home U+0080 to U+00FF Latin-1 Supplement
Glyph for U+00B9
Source: Noto Sans

U+00B9 Superscript One

U+00B9 was added to Unicode in version 1.1 (1993). It belongs to the block U+0080 to U+00FF Latin-1 Supplement in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Number and is commonly used, that is, in no specific script. The codepoint has the Digit value 1.

The glyph is a Super composition of the glyph Glyph for U+0031 Digit One. It has a Ambiguous East Asian Width. In bidirectional context it acts as European Number and is not mirrored. In text U+00B9 behaves as Ambiguous (Alphabetic or Ideographic) regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The CLDR project labels this character “superscript one” for use in screen reading software. It assigns additional tags, e.g. for search in emoji pickers: one, superscript.

The Wikipedia has the following information about this codepoint:

1 (one, also called unit, and unity) is a number and a numerical digit used to represent that number in numerals. It represents a single entity, the unit of counting or measurement. For example, a line segment of unit length is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0.

The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; although universally accepted today, this fact was controversial until the mid-20th century.

The unique mathematical properties of the number have led to its unique uses in other fields, ranging from science to sports. It commonly denotes the first, leading, or top thing in a group.


System Representation
UTF-8 C2 B9
UTF-16 00 B9
UTF-32 00 00 00 B9
URL-Quoted %C2%B9
HTML hex reference ¹
Wrong windows-1252 Mojibake ¹
HTML named entity &sup1
HTML named entity ¹
Encoding: EUC-KR (hex bytes) A9 F6
Encoding: ISO-8859-13 (hex bytes) B9
Encoding: ISO-8859-15 (hex bytes) B9
Encoding: ISO-8859-8 (hex bytes) B9
Encoding: WINDOWS-1252 (hex bytes) B9
Encoding: WINDOWS-1254 (hex bytes) B9
Encoding: WINDOWS-1255 (hex bytes) B9
Encoding: WINDOWS-1256 (hex bytes) B9
Encoding: WINDOWS-1257 (hex bytes) B9
Encoding: WINDOWS-1258 (hex bytes) B9
LATEX {^1}
AGL: Latin-1 onesuperior
AGL: Latin-2 onesuperior
AGL: Latin-3 onesuperior
AGL: Latin-4 onesuperior
AGL: Latin-5 onesuperior
Adobe Glyph List onesuperior
digraph 1S


Complete Record

Property Value
Age 1.1 (1993)
Block Latin-1 Supplement
General Category Other Number
Script Common
Bidirectional Category European Number
Combining Class Not Reordered
Decomposition Type Super
Decomposition Mapping Glyph for U+0031 Digit One
Simple Lowercase Mapping Glyph for U+00B9 Superscript One
Lowercase Mapping Glyph for U+00B9 Superscript One
Simple Uppercase Mapping Glyph for U+00B9 Superscript One
Uppercase Mapping Glyph for U+00B9 Superscript One
Simple Titlecase Mapping Glyph for U+00B9 Superscript One
Titlecase Mapping Glyph for U+00B9 Superscript One
Case Folding Glyph for U+00B9 Superscript One
ASCII Hex Digit
Bidi Control
Bidi Mirrored
Composition Exclusion
Case Ignorable
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Full Composition Exclusion
Default Ignorable Code Point
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji Presentation
Extended Pictographic
FC NFKC Closure Glyph for U+00B9 Superscript One
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
ID Continue
ID Start
IDS Binary Operator
IDS Trinary Operator and
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
Jamo Short Name
Join Control
Logical Order Exception
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Casefold Glyph for U+0031 Digit One
NFKC Quick Check No
NFKD Quick Check No
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Prepended Concatenation Mark
Pattern Syntax
Pattern White Space
Quotation Mark
Regional Indicator
Sentence Break Other
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Variation Selector
Word Break Other
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD
Bidi Paired Bracket Glyph for U+00B9 Superscript One
Bidi Paired Bracket Type None
East Asian Width Ambiguous
Hangul Syllable Type Not Applicable
ISO 10646 Comment
Joining Group No_Joining_Group
Joining Type Non Joining
Line Break Ambiguous (Alphabetic or Ideographic)
Numeric Type Digit
Numeric Value 1
Simple Case Folding Glyph for U+00B9 Superscript One
Script Extension
Vertical Orientation R