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Halfwidth Katakana Letter I Letter

イ is the halfwidth Katakana letter “I” used in Japanese text and ASCII-style layouts.

U+FF72

“イ” is a halfwidth Katakana character representing the sound “I.” It’s useful when you need a compact, fixed-width style that matches ASCII-like typography.

Halfwidth Katakana Letter I Letter Meaning

イ (HALFWIDTH KATAKANA LETTER I, U+FF72) is the halfwidth form of the Katakana letter I. In Japanese text, it corresponds to the “i” sound commonly written in Katakana (fullwidth カナ usage is different). Halfwidth characters are often used for legacy compatibility, narrow UI elements, or when mixing Japanese text with ASCII/halfwidth punctuation so the alignment stays consistent. You may see it in older encodings, technical displays, usernames, or content intended for monospaced or fixed-width presentation. Use it when the halfwidth Katakana set is required, not the fullwidth one.

Common uses

  • Fixed-width UI labels where fullwidth characters would misalign
  • Legacy-style Japanese text in older systems or terminals
  • Usernames or identifiers that follow halfwidth Katakana conventions
  • Form fields or layout grids that expect consistent character widths
  • Coding/technical displays that require a specific Unicode halfwidth character

Examples

イ (Halfwidth Katakana Letter I)

  • イ LOVE ニッポン
  • テスト: イ
  • kikiイtara
  • sakuraイ
  • nameイ

Variations

Technical codes

UnicodeU+FF72
HTML Entityイ
HTML Codeイ
CSS\FF72

FAQ

What does the Halfwidth Katakana Letter I letter mean?

イ (HALFWIDTH KATAKANA LETTER I, U+FF72) is the halfwidth form of the Katakana letter I. In Japanese text, it corresponds to the “i” sound commonly written in Katakana (fullwidth カナ usage is different). Halfwidth characters are often used for legacy compatibility, narrow UI elements, or when mixing Japanese text with ASCII/halfwidth punctuation so the alignment stays consistent. You may see it in older encodings, technical displays, usernames, or content intended for monospaced or fixed-width presentation. Use it when the halfwidth Katakana set is required, not the fullwidth one.

What character is “イ”?

“イ” is HALFWIDTH KATAKANA LETTER I, Unicode code point U+FF72.

How is this different from the fullwidth Katakana “イ”?

“イ” is halfwidth (U+FF72). The fullwidth version is a different Unicode character with a different code point and visual width.

How can I copy it for use in code?

You can copy the character directly (“イ”) or use the provided escapes: HTML (イ), CSS (\\FF72), or JavaScript (\\u{FF72}).

Will it look the same everywhere?

Not always. Font and rendering support affect whether halfwidth Katakana align consistently, especially outside monospaced or Japanese-support fonts.