AltKeyCodes

Infinity Alt Code and Symbol

The Alt code for Infinity is 236. Hold Alt, type 236 on the numeric keypad, then release Alt. Infinity also has the Unicode codepoint U+221E, so you can type it with Alt+8734 on Windows, search for U+221E in macOS's Character Viewer, use ∞ in HTML, or \221E in CSS. If your keyboard has no numeric keypad, use the Character Viewer, the HTML entity, or copy the character directly — the Alt key method requires a physical numpad. Copy the Infinity character from this page when you need it in a form, chat message or document that does not accept Alt codes. HTML also defines the named entity ∞ for Infinity, but the numeric form ∞ is safer when compatibility is uncertain.

Codes for this symbol

Copy any value by clicking it.
MethodValue
Legacy Alt code
Alt + decimal
Alt + X hex
HTML named entity
HTML decimal
HTML hex
CSS escape
Python escape
JavaScript escape
UTF-8 bytes
Unicode codepoint
Unicode block
Unicode category

Not available for this symbol: macOS Option shortcut.

How to type infinity on Windows

  1. Turn Num Lock on so the numeric keypad is active.
  2. Hold the left Alt key.
  3. Type 2 3 6 on the numeric keypad.
  4. Release Alt. The Infinity character (∞) appears.

If your keyboard has no numeric keypad, see how to type symbols without a numpad.

How to type infinity on macOS

There is no direct Option shortcut for Infinity. Open the Character Viewer with ⌃⌘Space, search for "Infinity" and click the character to insert it.

How to use infinity in code

  • HTML: or , also
  • CSS: content:"\221E"; ()
  • Python: \u221E or chr(0x221E)
  • JavaScript: \u221E or String.fromCodePoint(0x221E)
  • JSON: "\u221E"
  • LaTeX: $\infty$ (math mode)
Plus-minus SignAlt+241
Division SignAlt+246
Square RootAlt+251
Less-than Or Equal ToAlt+243
Greater-than Or Equal ToAlt+242
Multiplication SignAlt+0215
Almost Equal ToAlt+247
Greek Capital Letter OmegaAlt+234
Greek Small Letter PiAlt+227
Identical ToAlt+240
Greek Capital Letter SigmaAlt+228
Greek Small Letter AlphaAlt+224
N-ary SummationAlt+8721
Not Equal ToAlt+8800
Greek Capital Letter GammaAlt+226
Greek Capital Letter ThetaAlt+233
Greek Capital Letter PhiAlt+232
Greek Small Letter EpsilonAlt+238

Frequently asked questions

What is the Alt code for Infinity?

The legacy Alt code for Infinity is 236. Hold Alt, type 2 3 6 on the numeric keypad, then release Alt.

How do I type ∞ without a numpad?

Use the Windows Character Viewer (Win+.), the macOS Character Viewer (⌃⌘Space), an HTML entity such as ∞, or copy the character directly from this page.

Why does Alt+8734 not work?

Alt+8734 only works on a keyboard with a physical numeric keypad. It also requires the application to accept the numeric-keypad input path. Laptops without a numpad need an alternative method.

What is the Unicode for Infinity?

The Unicode codepoint for Infinity is U+221E. You can use this value in HTML as ∞, in CSS as \221E, and in Word with Alt+X.

How do I type ∞ on a Mac?

Open the Character Viewer with ⌃⌘Space and search for the character name or U+221E, then click it.

Back to Math Symbols