What is the Unicode code point for the infinity symbol?

The infinity symbol (∞) is U+221E in the Unicode Mathematical Operators block. The infinity emoji (♾) is a different character, U+267E PERMANENT PAPER SIGN, used on some platforms to represent endless or recyclable.

What is the keyboard shortcut for infinity?

On Mac, press Option+5 to type ∞ directly. On Windows, hold Alt and type 236 on the numeric keypad, or type 221E in Word/Outlook and press Alt+X. On Linux, press Ctrl+Shift+U, type 221e, then press Enter or Space.

How do I insert the infinity symbol in HTML?

Use the named entity ∞ or the numeric entities ∞ (decimal) and ∞ (hex). All three render as ∞ in any browser.

What is the LaTeX command for infinity?

Use \infty in math mode: $\infty$ renders as ∞. It ships with base LaTeX, no extra package needed.

What is the difference between ∞ and ♾?

∞ (U+221E) is the standard mathematical infinity symbol used in equations and formulas. ♾ (U+267E), officially named Permanent Paper Sign, renders as a colorful infinity loop on many platforms and is commonly used as an infinity emoji in casual text rather than math notation.

What are incomplete infinity and tie over infinity used for?

Incomplete Infinity (⧜, U+29DC) and Tie Over Infinity (⧝, U+29DD) come from the Miscellaneous Mathematical Symbols-B Unicode block. They appear in advanced mathematical logic and set theory notation rather than everyday math, and have no dedicated LaTeX macro in base packages.

Infinity Symbol

Name: Infinity Symbol
Availability: InStock
Author: Nham Vu

Click to copy the infinity symbol (∞) and its variants, with Unicode code point, HTML entity, and LaTeX code for each.

Click the symbol to copy Infinity to your clipboard.

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How to type it by operating system

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Summary

Click to copy the infinity symbol (∞) and its variants, with Unicode code point, HTML entity, and LaTeX code for each.

How it works

Click the large infinity symbol at the top, or any variant card, to copy that character to your clipboard.
Select the infinity emoji, incomplete infinity, or tie over infinity to switch the active character.
The format panel updates with the Unicode code point, HTML entities, LaTeX command, and CSS content value for the selected character.
The Windows, Mac, and Linux panels show the keyboard method for typing that character on each platform.
Click any format value to copy just that string, such as the hex entity or the LaTeX command.

Use cases

Paste the infinity symbol into math homework, worksheets, or slides.
Insert ∞ or ∞ into HTML without breaking encoding.
Grab the LaTeX \infty command for a formula in a paper or README.
Find the Windows Alt code (236) for infinity when Notepad or Word blocks Unicode input.
Type infinity on a Mac with the Option+5 shortcut.
Copy the infinity emoji (♾) for a chat message or social media caption.
Look up incomplete infinity (⧜) or tie over infinity (⧝) for specialized math logic notation.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu