Ｉ is the Unicode character FULLWIDTH LATIN CAPITAL LETTER I, code point U+FF29 (decimal 65321) in the Halfwidth and Fullwidth Forms block, added in Unicode 1.1. In HTML write Ｉ, and in UTF-8 it is the 3 bytes EF BC A9.
Codes
| Where | How to write it |
|---|---|
| Code point | U+FF29 |
| Decimal | 65321 |
| UTF-8 bytes | EF BC A9 |
| UTF-16 (big-endian) | FF29 |
| UTF-32 | 0000FF29 |
| HTML decimal | Ｉ |
| HTML hex | Ｉ |
| CSS | \FF29 |
| JavaScript | \uFF29 |
| JSON | \uFF29 |
| Python | \uFF29 |
| Python by name | \N{FULLWIDTH LATIN CAPITAL LETTER I} |
| Java, C# | \uFF29 |
| Rust, Swift | \u{FF29} |
| Go, C, C++ | \uFF29 |
| URL (percent-encoded) | %EF%BC%A9 |
JavaScript and JSON strings store text as UTF-16, so this character is one code unit long. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | FULLWIDTH LATIN CAPITAL LETTER I |
| Code point | U+FF29 (decimal 65321) |
| Block | Halfwidth and Fullwidth Forms (U+FF00–U+FFEF) |
| General category | Lu: Uppercase letter |
| Script | Latin |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 1.1 |
Decomposition
FULLWIDTH LATIN CAPITAL LETTER I has a compatibility decomposition (wide) to the sequence below. NFKC and NFKD normalisation replace it with that sequence, which can change how text looks, so use them for search, not for storage.
Upper and lower case
- ｉ U+FF49 Fullwidth Latin Small Letter I — Lowercase
Nearby in Halfwidth and Fullwidth Forms
- Ａ U+FF21 Fullwidth Latin Capital Letter A
- Ｂ U+FF22 Fullwidth Latin Capital Letter B
- Ｃ U+FF23 Fullwidth Latin Capital Letter C
- Ｄ U+FF24 Fullwidth Latin Capital Letter D
- Ｅ U+FF25 Fullwidth Latin Capital Letter E
- Ｆ U+FF26 Fullwidth Latin Capital Letter F
- Ｇ U+FF27 Fullwidth Latin Capital Letter G
- Ｈ U+FF28 Fullwidth Latin Capital Letter H
- Ｊ U+FF2A Fullwidth Latin Capital Letter J
- Ｋ U+FF2B Fullwidth Latin Capital Letter K
- Ｌ U+FF2C Fullwidth Latin Capital Letter L
- Ｍ U+FF2D Fullwidth Latin Capital Letter M
- Ｎ U+FF2E Fullwidth Latin Capital Letter N
- Ｏ U+FF2F Fullwidth Latin Capital Letter O
- Ｐ U+FF30 Fullwidth Latin Capital Letter P
- Ｑ U+FF31 Fullwidth Latin Capital Letter Q
All 225 characters: Halfwidth and Fullwidth Forms.
Official reference
Questions people ask
- What is the HTML code for Ｉ?
- Use Ｉ (decimal) or Ｉ (hex).
- What is the UTF-8 encoding of U+FF29?
- EF BC A9 (hex), 3 bytes. In a URL it is %EF%BC%A9.
- How do I write U+FF29 in JavaScript or Python?
- JavaScript: \uFF29. Python: \uFF29.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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