Infinity Symbol (∞)
HTML entity for the infinity symbol (∞). Learn how to use ∞ or ∞ in HTML for mathematics, pricing pages, and unlimited concepts.
Math
∞
Infinity Symbol
All Formats
| Format | Value |
|---|---|
| Character | ∞ |
| HTML Entity | ∞ |
| HTML Code (Decimal) | ∞ |
| Unicode | U+221E |
| CSS Content | \221E |
| Category | Math |
About Infinity Symbol
The infinity symbol (∞) represents an unbounded quantity or concept without limit. It is widely used in mathematics, physics, computing, and web design, particularly on pricing pages to indicate unlimited resources.
In HTML, insert this symbol using ∞, ∞, or ∞. The named entity ∞ is clear and supported by all modern browsers. Beyond mathematics, the infinity symbol has become a popular design element used in logos, jewelry, and decorative web content.
The infinity symbol is part of the Mathematical Operators Unicode block. It was introduced by mathematician John Wallis in 1655 and resembles a horizontal figure-eight or lemniscate. In computing, it is often used to represent concepts like unlimited bandwidth, infinite scrolling, or unbounded time periods.
In CSS, use "\221E" with the content property for pseudo-element insertion. The infinity symbol is commonly used on SaaS pricing pages next to features like "unlimited storage" or "infinite API calls." Screen readers announce it as "infinity," making it accessible for all users.
Usage Examples
<!-- Using named entity -->
<p>This is the Infinity Symbol: ∞</p>
<!-- Using numeric code -->
<p>This is the Infinity Symbol: ∞</p>
<!-- Using the character directly (UTF-8) -->
<p>This is the Infinity Symbol: ∞</p>
<!-- In CSS -->
.icon::before {
content: "\221E";
}FAQ
What is the HTML entity for Infinity Symbol?
The Infinity Symbol (∞) can be inserted using the named entity ∞, the numeric code ∞, or by pasting the character directly in a UTF-8 document.
How do I use ∞ in CSS?
In CSS, use the content property with the value "\221E". For example: content: "\221E";
What is the Unicode code point for Infinity Symbol?
The Unicode code point for Infinity Symbol is U+221E. This is the universal identifier for this character across all platforms and programming languages.
Try It in the HTML Entity Tool
Use our HTML Entity Encoder & Decoder to encode and decode HTML entities, convert between named, numeric, and hex formats, and explore the full entity reference table.