How to Type Infinity Symbol (∞)

Quick answer

How to type the Infinity Symbol on Windows

Hold Alt and type 236 on the numeric keypad, then release Alt.

No numeric keypad? On a laptop, use Win + . or open Character Map (search for charmap in Start).

In Microsoft Word, type 221E and then press Alt + X to turn the code into ∞.

How to type the Infinity Symbol on a Mac

Press Option + 5.

On a Chromebook or Linux

Press Ctrl + Shift + U, type 221e, then press Enter or Space.

On iPhone and Android

Switch to the symbols keyboard (123 then #+= on iPhone, ?123 then =\< on Android). If it is not there, copy it from this page.

In Google Docs

Go to Insert > Special characters and search for "infinity symbol".

About this character

Represents an unbounded quantity.

In Excel and Google Sheets

Use the formula =UNICHAR(8734) in Excel 2013 or later and in Google Sheets. It returns ∞ in the cell, so you can combine it with other text, for example ="25"&UNICHAR(8734).

In Microsoft Word, PowerPoint and Outlook

• Unicode shortcut: type 221E, then press Alt + X. Word turns the code into ∞. Press Alt + X again to turn it back into the code.
• Insert menu: Insert > Symbol > More Symbols, choose the "(normal text)" font, set "from" to Unicode (hex) and enter 221E in the Character code box.
• AutoCorrect shortcut: File > Options > Proofing > AutoCorrect Options. Type a shortcut such as (x) in "Replace" and ∞ in "With". From then on, Word replaces the shortcut automatically.

Make your own shortcut on any device

• Mac, iPhone and iPad: System Settings > Keyboard > Text Replacements (Mac) or Settings > General > Keyboard > Text Replacement (iPhone and iPad). Add ∞ with a short phrase. It syncs across your Apple devices.
• Android (Gboard): Settings > Dictionary > Personal dictionary > choose your language > + . Enter ∞ as the word and a shortcut.
• Windows: press Win + V to turn on clipboard history and pin ∞ so it is always one click away.

For developers

Alt code not working?

1. Turn on Num Lock. Alt codes only work with the numeric keypad, not the number row above the letters.
2. Hold Alt the whole time and type all digits before releasing it.
3. Laptop without a keypad? Use Win + . (period) to open the symbol panel, or copy ∞ from the top of this page.
4. Wrong character appears? Codes with a leading zero (Alt + 0xxx) and codes without one (Alt + xxx) come from different character sets, so they give different characters. Use the code exactly as shown on this page.
5. Some apps block Alt codes. In that case use copy and paste or the Unicode method above.

Character details

Related characters at a glance

Type symbols faster

If you use a symbol every day, a text replacement shortcut is the fastest method on every device: type a short code such as "(deg)" and your computer or phone swaps in the symbol automatically. For symbols you use only occasionally, keep this page bookmarked or install Typeri as an app for one-tap access, even offline. And if you are still looking at the number row while you type codes, our number drills build the muscle memory for every digit.

More questions

What is the Unicode for infinity symbol? U+221E, decimal 8734.

How do I type ∞ on a laptop without a number pad? Press Win + . (period) to open the emoji and symbol panel, or type the hex code followed by Alt + X in Word. On a Mac, use the Option shortcut or Ctrl + Cmd + Space.

How do I insert ∞ in Excel? Type =UNICHAR(8734) in a cell, or copy ∞ from this page and paste it.

Why does my Alt code type the wrong symbol? Codes with a leading zero use the Windows-1252 character set, and codes without it use the older code page 437, so Alt + 0xxx and Alt + xxx give different characters. Also make sure you use the numeric keypad with Num Lock on.

Related characters

Frequently asked questions