オ

U+30AA · KATAKANA LETTER O

Katakana Letter O

CodepointU+30AA
NameKATAKANA LETTER O
Decimal12458
BlockKatakana (U+30A0–U+30FF)
Plane0 — Basic Multilingual Plane
ScriptKatakana
CategoryLo — Other Letter
Unicode version1.1 (1993)
Bidi classL — Left-to-Right
Combining class0
East Asian widthW — Wide
MirroredNo

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Encodings & escapes

UTF-8 encoder →

UTF-8	`E3 82 AA`	3 bytes
UTF-16	`30AA`	1 code unit
UTF-32	`000030AA`	4 bytes
HTML decimal	`オ`
HTML hex	`オ`
CSS	`\30AA`	in content: "…"
JavaScript	`\u30AA`
JSON	`\u30AA`
Python	`\u30AA`
Python	`\N{KATAKANA LETTER O}`	by name
Java / C#	`\u30AA`
C / C++	`\u30AA`	universal character name
Rust / Swift / PHP	`\u{30AA}`
Go	`\u30AA`
Ruby	`\u30AA`
Excel / Sheets	`=UNICHAR(12458)`
URL-encoded	`%E3%82%AA`	percent-encoded UTF-8

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Characters built on オ

U+32D4㋔Circled Katakana O U+3309㌉Square Onsu U+330A㌊Square Oomu U+FF75ｵHalfwidth Katakana Letter O

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Nearby in Katakana

All in block →

U+30A4イKatakana Letter I U+30A5ゥKatakana Letter Small U U+30A6ウKatakana Letter U U+30A7ェKatakana Letter Small E U+30A8エKatakana Letter E U+30A9ォKatakana Letter Small O U+30ABカKatakana Letter Ka U+30ACガKatakana Letter Ga U+30ADキKatakana Letter Ki U+30AEギKatakana Letter Gi U+30AFクKatakana Letter Ku U+30B0グKatakana Letter Gu