Katakana-hiragana Prolonged Sound Mark is the Unicode character ー at codepoint U+30FC in the Katakana block of the Basic Multilingual Plane (BMP). Click the character above to copy it to your clipboard — or use one of the
encodings below to embed it in HTML, CSS, JavaScript, Python or plain text.
Technical Reference
| Unicode Codepoint | |
| Decimal | |
| UTF-8 (hex) | |
| UTF-16 (hex) | |
| HEX Entity | |
| HTML Entity | |
| CSS (\xxxx) | |
| JavaScript | |
| Python |
How to Use Katakana-hiragana Prolonged Sound Mark
To use the Katakana-hiragana Prolonged Sound Mark symbol (ー) in HTML, insert the
entity ー directly into your markup. The decimal entity ー works in any HTML-serialised document.
In CSS pseudo-elements use content: '\30FC';.
In JavaScript and TypeScript the escape '\u30FC' evaluates to ー. In Python source, write '\u30FC'.
The character encodes to E3 83 BC as UTF-8 bytes and 30FC as UTF-16 code units. Its decimal codepoint is 12540.
This is a text-based Unicode character. It will render in the current font on most platforms. If a font lacks this glyph, the browser may show a placeholder or fall back to a system font.