Halfwidth Katakana-hiragana Prolonged Sound Mark

U+FF70

Halfwidth Katakana-hiragana Prolonged Sound Mark is the Unicode character ー at codepoint U+FF70 in the Halfwidth and Fullwidth Forms 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 Halfwidth Katakana-hiragana Prolonged Sound Mark

To use the Halfwidth 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: '\FF70';. In JavaScript and TypeScript the escape '\uFF70' evaluates to ー. In Python source, write '\uFF70'.

The character encodes to EF BD B0 as UTF-8 bytes and FF70 as UTF-16 code units. Its decimal codepoint is 65392.

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.

Similar Symbols

Made with and an unreasonable amunt f Unicde knwledge.

Last updated on 5 May 2026