Circled Ring Operator (⊚) is the Unicode character at U+229A in the Mathematical Operators block (official name: CIRCLED RING OPERATOR). It shows a small ring inside a larger circle and is used in algebra and formal math notation.
Remember
Character ⊚
Unicode U+229A
Hex entity ⊚
Decimal ⊚
Named entity ⊚ / ⊚
CSS escape \229A
All of these produce the same glyph: ⊚. Prefer ⊚ or a typed ⊚ in hand-written HTML; use numeric forms when generating markup.
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Direct character
⊚
HTML text (UTF-8)
Named entity
⊚ or ⊚
HTML markup
Hex entity
⊚
HTML markup
Decimal entity
⊚
HTML markup
CSS escape
\229A
Stylesheet content
When to use which
Situation
Use
Hand-written HTML
⊚ or type ⊚
Generated / numeric-only markup
⊚ or ⊚
Generated text via ::before / ::after
content: "\229A"
Plain ring / composition
Use ∘ (∘ / U+2218)
Circled dot (look-alike)
Use ⊙ (U+2299), not ⊚
See it
Live Preview
Circled Ring Operator rendered in common writing contexts.
Inline textA ⊚ B
Large glyph⊚
Compared⊚ ∘ ⊙ ⊕
Monospaceop ⊚ → circled ring
With entitiesNamed: ⊚ | Hex: ⊚ | Decimal: ⊚
Code
Complete HTML Example
One page that shows Circled Ring Operator with the named entity, hex entity, decimal entity, CSS escape, and a typed character. Use View Output or open the live editor.
Named + Hex + Decimal + CSS + Typed
Five ways to produce ⊚ in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Circled Ring Operator (⊚) in HTML</title>
<style>
#point::after {
content: "\229A";
}
</style>
</head>
<body>
<p>Circled Ring Operator using Named Entity: ⊚</p>
<p>Circled Ring Operator using Hex Code: ⊚</p>
<p>Circled Ring Operator using HTML Code: ⊚</p>
<p id="point">Circled Ring Operator using CSS Entity: </p>
<p>Typed directly: ⊚</p>
</body>
</html>
Circled Ring Operator using Named Entity: ⊚
Circled Ring Operator using Hex Code: ⊚
Circled Ring Operator using HTML Code: ⊚
Circled Ring Operator using CSS Entity: ⊚
Typed directly: ⊚
How It Works
1. Named:⊚ (alias ⊚) is the HTML5 named reference for U+229A → ⊚.
2. Hex:U+229A → ⊚ in HTML. Same glyph as the named form.
3. Decimal: same code point as 8858 → ⊚. Same result as hex.
4. CSS: use \229A in content (not an HTML entity). #point::after appends that ⊚ after the paragraph text.
5. Typed ⊚: fine in UTF-8 pages. All five lines show the same glyph.
Pitfalls & Tips
Common mistakes when working with Circled Ring Operator entities.
Named
Use ⊚
⊚ and ⊚ both work. Always end with ;.
CSS vs HTML
Do not mix escapes
\229A belongs in CSS. ⊚ / ⊚ / ⊚ belong in HTML.
⊚ vs ∘
Different characters
⊚ is U+229A. Ring operator ∘ is U+2218 (∘).
⊚ vs ⊙
Not circled dot
Circled dot ⊙ is U+2299. Do not swap it with circled ring.
Semicolon
End references
Always finish with ; — write ⊚ and ⊚, not bare forms.
Fonts
Math font coverage
Some UI fonts lack ⊚. If missing, name the operator in nearby text.
Compatibility
Browser Support
Circled Ring Operator (U+229A) and its entity forms (⊚, ⊚, ⊚, ⊚, CSS \\229A) are supported in all mainstream browsers.
✓ Universal support
Circled Ring Operator (⊚)
Type ⊚, or encode with named, hex, decimal, or CSS escape — same glyph 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+229A / entitiesFull support
Bottom line: Prefer ⊚ or a typed ⊚ for math notation. Use decimal when generating markup, and \\229A only inside CSS content.
Remember
Key Takeaways
Unicode: circled ring operator is U+229A (decimal 8858).
Use ⊚ (hex), ⊚ (decimal), ⊚ or ⊚ (named), or the CSS escape \229A in the content property. All render ⊚. You can also paste ⊚ directly when your file is UTF-8.
U+229A (hex 229A, decimal 8858). Unicode names it CIRCLED RING OPERATOR. It belongs to the Mathematical Operators block.
Yes. Both ⊚ and ⊚ map to U+229A. Prefer ⊚ in hand-written HTML; numeric forms are useful in generated markup.
⊚ (U+229A) is a small ring inside a circle. ∘ (U+2218) is the plain ring (composition) operator. ⊙ (U+2299) is circled dot — a different circled math operator.
HTML entities (⊚, ⊚, ⊚, or ⊚) go in markup. The CSS escape \229A is used in stylesheets (usually in the content property of ::before/::after). Both render ⊚.
Use it in algebra or formal notation when you need this exact circled-ring operator. Prefer ∘ for ordinary function composition and ⊙ when you mean circled dot.
🤔
Did you know?
Circled ring operator is Unicode U+229A (decimal 8858) — official name CIRCLED RING OPERATOR in the Mathematical Operators block. HTML named references are ⊚ and ⊚. It is not the plain ring operator (U+2218 ∘) or circled dot (U+2299 ⊙).
