Fraction 1 by 8 (⅛) is the Unicode character at U+215B in Number Forms. Official name: VULGAR FRACTION ONE EIGHTH. It is one precomposed fraction glyph — not the three characters 1/8.
Remember
Character ⅛
Unicode U+215B
Named entity ⅛
Hex entity ⅛
Decimal ⅛
CSS escape \215B
Meaning vulgar fraction one eighth (1/8)
Not the same 1/8 (three chars) · ⅐ (1/7) · ⅜ (3/8)
Prefer ⅛ in HTML for readable markup. You can also use ⅛, ⅛, or type ⅛ in a UTF-8 document.
Built with Named: ⅛
Built with Hex: ⅛
Built with Decimal: ⅛
Built with CSS: ⅛
Typed: ⅛
Measure: ⅛ teaspoon
Math: 8 ⅛ = 1
How It Works
1. Named:⅛ is the HTML5 name for U+215B → ⅛.
2. Hex:⅛ inserts the same code point by hexadecimal value.
3. Decimal: same code point as 8539 → ⅛. Same visual as named/hex.
4. CSS: use \215B in content (not an HTML entity). #point::after appends ⅛.
5. Typed: paste ⅛ in a UTF-8 document when you need the one-eighth glyph as one character.
Pitfalls & Tips
Common mistakes when working with fraction 1 by 8.
Name
Prefer ⅛
The named entity is clear and standard. Avoid inventing names like &oneeighth;.
1/8
Not three characters
Typing 1/8 creates three code points. ⅛ is one Number Forms character.
⅜
Not three eighths
Three eighths is ⅜ (U+215C, ⅜). Use it when you mean 3/8, not 1/8.
Font
Font coverage
Some fonts omit Number Forms fractions. If ⅛ is missing, fall back to 1/8 or a font with Number Forms coverage.
CSS vs HTML
Do not mix escapes
\215B belongs in CSS strings. ⅛ / ⅛ / ⅛ belong in HTML.
a11y
Add accessible text
Screen readers may not announce ⅛ clearly. Prefer aria-label="one eighth" or nearby prose when the fraction carries meaning.
Semicolon
End references
Always finish entities with ; — write ⅛, not &frac18.
Compatibility
Browser Support
Fraction 1 by 8 (U+215B) and its entity forms (⅛, ⅛, ⅛, CSS \\215B) are supported in all mainstream browsers. Visible glyphs depend on Number Forms font coverage.
✓ Universal support
Fraction 1 By 8 (⅛)
Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+215BFull support
Bottom line: Prefer ⅛ in HTML. Use ⅛ / ⅛ when numeric form is required, and \\215B only inside CSS content.
Remember
Key Takeaways
Unicode: fraction 1 by 8 is U+215B (decimal 8539) — glyph ⅛.
HTML: prefer ⅛ — also ⅛ / ⅛ / type ⅛.
Use ⅛ (named), ⅛ (hex), ⅛ (decimal), type ⅛ directly in UTF-8, or the CSS escape \215B in content.
U+215B (VULGAR FRACTION ONE EIGHTH). Hex 215B, decimal 8539. It belongs to the Number Forms block (U+2150–U+218F).
Yes. HTML5 defines ⅛ for U+215B. Prefer it for readable markup.
Use it in recipes, measurements, math, and everyday text when you want the single one-eighth glyph. Prefer typing 1/8 as three characters when plain ASCII is required.
HTML entities (⅛, ⅛, or ⅛) go in markup. The CSS escape \215B goes in stylesheet strings (usually content on ::before/::after).
No. U+215B is one character (⅛). Typing 1/8 creates three characters. Three eighths is U+215C (⅜).
🤔
Did you know?
Fraction 1 by 8 is Unicode U+215B (decimal 8539) — glyph ⅛ (VULGAR FRACTION ONE EIGHTH) in Number Forms. HTML5 named entity: ⅛. Prefer the named form when you want readable markup. It is one precomposed character, not 1/8 as three characters. Related fractions include one seventh (⅐) and three eighths (⅜).
