U+012A "Ī" Latin Capital Letter I with Macron Unicode Character
Unicode Version 17.0
Ī
U+012A "Ī" Latin Capital Letter I with Macron is a graphical representation of the letter I modified with a macron, a horizontal line placed above the character, to indicate a long vowel sound in various writing systems. This character is used in languages such as Latvian, where it marks a specific phonological length, as well as in transliterations of languages like Japanese (as in rōmaji for long i) and in academic notations for Latin or other classical texts. It belongs to the Latin Extended-A block of Unicode and has a distinct code point separate from its lowercase counterpart U+012B, ensuring proper encoding and rendering in digital text across different platforms and fonts.
General Properties
| Code Point | U+012A |
| Version Added | 1.1 |
| Name | Latin Capital Letter I with Macron |
| Unicode 1.0 Name | Latin Capital Letter I Macron |
| Block | Latin Extended-A |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "I" U+0049 Latin Capital Letter I "̄" U+0304 Combining Macron |
Encodings
| HTML Decimal Encoding | Ī |
| HTML Hex Encoding | Ī |
| UTF-8 Encoding | 0xC4 0xAA |
| UTF-16 Encoding | 0x012A |
| UTF-32 Encoding | 0x0000012A |
| C/C++/Java Escape | \u012a |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ī" U+012B Latin Small Letter I with Macron |
| Lowercase Code Point | "ī" U+012B Latin Small Letter I with Macron |
| Simple Case Folding | "ī" U+012B Latin Small Letter I with Macron |
| Case Folding | "ī" U+012B Latin Small Letter I with Macron |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ī" U+012B Latin Small Letter I with Macron |
| NFKC Simple Casefold | "ī" U+012B Latin Small Letter I with Macron |
| 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 | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |