U+FF37 "Ｗ" Fullwidth Latin Capital Letter W Unicode Character
Unicode Version 17.0
Ｗ
U+FF37 "Ｗ" Fullwidth Latin Capital Letter W is a typographic variant of the standard Latin letter W, designed to occupy the same fixed width as Chinese and Japanese ideographic characters, known as fullwidth forms. It belongs to the Halfwidth and Fullwidth Forms block, where it serves primarily as a compatibility character for use in CJK (Chinese, Japanese, and Korean) text environments that require uniform character spacing, such as in monospaced fonts or legacy computing systems. This ensures that the Latin letter aligns visually with native scripts like Hanzi, Kanji, or Hangul, avoiding the narrower appearance of its halfwidth counterpart.
General Properties
| Code Point | U+FF37 |
| Version Added | 1.1 |
| Name | Fullwidth Latin Capital Letter W |
| Block | Halfwidth and Fullwidth Forms |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Wide |
| Decomposition Mapping | "W" U+0057 Latin Capital Letter W |
Encodings
| HTML Decimal Encoding | Ｗ |
| HTML Hex Encoding | Ｗ |
| UTF-8 Encoding | 0xEF 0xBC 0xB7 |
| UTF-16 Encoding | 0xFF37 |
| UTF-32 Encoding | 0x0000FF37 |
| C/C++/Java Escape | \uff37 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Fullwidth |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ｗ" U+FF57 Fullwidth Latin Small Letter W |
| Lowercase Code Point | "ｗ" U+FF57 Fullwidth Latin Small Letter W |
| Simple Case Folding | "ｗ" U+FF57 Fullwidth Latin Small Letter W |
| Case Folding | "ｗ" U+FF57 Fullwidth Latin Small Letter W |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "w" U+0077 Latin Small Letter W |
| NFKC Simple Casefold | "w" U+0077 Latin Small Letter W |
| 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 | Upper |