U+FF17 "７" Fullwidth Digit Seven Unicode Character
Unicode Version 17.0
７
U+FF17 "７" Fullwidth Digit Seven is a typographic variant of the standard ASCII digit "7" that occupies the same width as a fullwidth CJK character, typically used in East Asian text to achieve visual consistency and alignment when mixed with Chinese, Japanese, or Korean characters. It belongs to the Halfwidth and Fullwidth Forms block, encoded primarily for compatibility with legacy character sets, and is commonly found in monospaced or proportional fonts designed for vertical text, spreadsheets, or formatted documents where uniform character spacing is required.
General Properties
| Code Point | U+FF17 |
| Version Added | 1.1 |
| Name | Fullwidth Digit Seven |
| Block | Halfwidth and Fullwidth Forms |
| General Category | Decimal Number |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | European Number |
| Decomposition Type | Wide |
| Decomposition Mapping | "7" U+0037 Digit Seven |
Encodings
| HTML Decimal Encoding | ７ |
| HTML Hex Encoding | ７ |
| UTF-8 Encoding | 0xEF 0xBC 0x97 |
| UTF-16 Encoding | 0xFF17 |
| UTF-32 Encoding | 0x0000FF17 |
| C/C++/Java Escape | \uff17 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | Decimal |
| Numeric Value | 7 |
| Line Break | Ideographic |
| East Asian Width | Fullwidth |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "7" U+0037 Digit Seven |
| NFKC Simple Casefold | "7" U+0037 Digit Seven |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Continue | Yes |
| XID Continue | Yes |
| Hex Digit | Yes |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Numeric |
| Sentence Break | Numeric |