U+FF4A "ｊ" Fullwidth Latin Small Letter J Unicode Character
U+FF4A "ｊ" Fullwidth Latin Small Letter J is a typographic variant of the standard Latin lowercase "j" that occupies a full character width, typically twice as wide as a regular Latin letter. It belongs to the Halfwidth and Fullwidth Forms block, which was designed to harmonize with East Asian character sets like Chinese, Japanese, and Korean, where ideographic characters traditionally take up a uniform, square space. This fullwidth "j" is often used in environments that require monospaced alignment, such as in terminal displays, videogame text, or typesetting for scripts that mix Latin and CJK characters. It maintains the same phonetic value as a standard "j" and appears visually distinct with its broader proportions, ensuring consistent spacing alongside fullwidth punctuation and other wide symbols.
General Properties
| Code Point | U+FF4A |
| Version Added | 1.1 |
| Name | Fullwidth Latin Small Letter J |
| Block | Halfwidth and Fullwidth Forms |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Wide |
| Decomposition Mapping | "j" U+006A Latin Small Letter J |
Encodings
| HTML Decimal Encoding | ｊ |
| HTML Hex Encoding | ｊ |
| UTF-8 Encoding | 0xEF 0xBD 0x8A |
| UTF-16 Encoding | 0xFF4A |
| UTF-32 Encoding | 0x0000FF4A |
| C/C++/Java Escape | \uff4a |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Fullwidth |
| Lowercase | Yes |
| Simple Uppercase Code Point | "Ｊ" U+FF2A Fullwidth Latin Capital Letter J |
| Simple Titlecase Code Point | "Ｊ" U+FF2A Fullwidth Latin Capital Letter J |
| Uppercase Code Point | "Ｊ" U+FF2A Fullwidth Latin Capital Letter J |
| Titlecase Code Point | "Ｊ" U+FF2A Fullwidth Latin Capital Letter J |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When NFKC Casefolded | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| NFKC Casefold | "j" U+006A Latin Small Letter J |
| NFKC Simple Casefold | "j" U+006A Latin Small Letter J |
| 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 | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Lower |