The mathematical meaning of infinity is a number larger than any countable number. The simple example is that any number divided by zero will result in infinity. For example, 5/0=∞. However, it is difficult to type this simple equation in documents as infinity symbol does not have a dedicated key. If you frequently type infinity symbol, here are the keyboard shortcuts and other ways to use.
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Keyboard Shortcuts Summary for Infinity Symbol
Here is the summary of shortcuts for infinity symbol. The symbol has a Unicode point U+221E which you can use in different formats to insert on various applications.
| Symbol Name | Infinity (∞) |
| Alt Code Shortcut | Alt + 8734 |
| Alt + X (Word Document) | 221E Alt + X |
| Mac Shortcut | Option + 221E |
| HTML Entity Decimal | ∞ |
| HTML Entity Hexadecimal | ∞ |
| HTML Entity Name | ∞ |
| CSS Value | \221E; |
| JS Escape Sequence | \u221E |
| Decimal | 8734 |
| Hexadecimal | 221E |
| Unicode | U+221E |
Keyboard Shortcuts to Type Infinity Symbol in Windows
There are multiple ways to use in Windows to type infinity symbol
Alt Code Keyboard Shortcuts for Infinity Symbol
The easiest way to insert infinity symbol on any Windows application is to use alt code shortcuts.
- Turn on number lock on your keyboard.
- Hold one of the alt keys available right and left side of the shift key.
- Type 8734 using number pad on your keyboard.
- This will make the infinity symbol ∞.
However, this method needs a keyboard with separate number pad. If you are using a compact laptop does not have separate number pad, check out this article on whether your keyboard supports alt code.
Alt + X Shortcut for Microsoft Word
In the above method, we use the decimal code along with alt keys on your keyboard. Alternatively, you can also use hexadecimal value with alt code. But this method will work only on Microsoft Word documents. Type the hexadecimal value 221E and then press alt + x keys together to make infinity symbol.
221E Alt + X = ∞
Using Symbol Utility in Office Documents
Do not worry, if keyboard shortcuts do not help you. There are many other alternate options available for typing symbols in Windows computer. Follow the below instructions on any Office documents like Word, Excel, PowerPoint and Outlook.
- Go to “Insert > Symbols > Symbol > More Symbols” menu.
- On the Symbol utility pop-up that opens up, select “Mathematical Operators” as a subset value.
- Find infinity symbol and click on “Insert” button to add the symbol in your document.
Using Equation Editor in Office Documents
Sometime, you may be frequently using equations involving mathematical operator like infinity, pi, division and other symbols. In this case, you can use the equation editor instead of keyboard shortcuts.
- Open Excel, Word or any other Office applications.
- Go to “Insert > Symbols > Equation” menu item.
- This will open equation editor and you can infinity symbol under basic math operators.
- You can also find predefined equations and formulae that you can insert directly by selecting.
The only problem with equation editor is that you have to adjust the inserted equations to align with other text content in your document. Especially, printing equations will be difficult as they are not regular text and align inappropriately.
Character Map to Copy Infinity Symbol
Similar to Symbol utility inside Office documents, you can use Character Map app to copy infinity symbol. The advantage here is that you can use the app independently to insert the symbol anywhere you need.
- Press “Control + R” keys to open Run prompt.
- Type charmap and press enter key, this will open Character Map app.
- Select “Unicode Subrange” option against “Group by” dropdown.
- On the pop-up, select “Mathematical Operators”.
- Find infinity symbol and click on it to select.
- Click on “Select” button and then “Copy” to copy the symbol into your clipboard.
- After that you can paste the symbol wherever you need.
Using Emoji Panel in Windows 10
Unicode has an official emoji for infinity symbol. You can use the emoji panel to insert this emoji on your documents. However, this emoji will be displayed inside a box in Windows computers making it useless for using for mathematical purposes. Fortunately, you can use the same emoji panel to insert the mathematical infinity symbol also.
- Press “Win + Dot” keys to open emoji panel.
- Type “infinity” to find the emoji symbol.
- Go to “Symbols > Math symbols” section and scroll down.
- Find mathematical infinity symbols and insert on your document.
Keyboard Shortcuts to Type Infinity Symbol in Mac
There are two ways you can type infinity symbol in macOS.
Using Option Key Shortcut
Option key in macOS is the equivalent of alt key in Windows OS. You can use hexadecimal codepoint 221E with option key in macOS.
- First change the input method to Unicode Hex Input.
- Hold one of the option keys on your keyboard.
- Type 221E to make infinity symbol ∞.
Using Character Viewer to Insert Infinity Symbol
Similar to Character Map in Windows, you can use Character Viewer app independently to insert any symbols.
- When you are in any application, press “Command + Control + Space” keys.
- Alternatively, go to “Edit > Emojis & Symbols” menu to open Character Viewer app.
- Type infinity in the search box to filter the symbol.
- Double click on the infinity symbol to insert on your document.
Infinity Symbol in HTML and CSS
Use one of the followings code formats in your HTML document to insert infinity symbol.
<p>∞</p>
<p>∞</p>
<p>∞</p>On CSS, you can use the following code using Unicode hexadecimal value of the symbol.
li:before {
content:\221E;
font-family:Arial;
}Symbol Variations
You can customize the appearance infinity symbol like any other text content. It is possible to apply text effects to show the symbol different from regular text.
On Mac, you can choose the font variation directly from Character Viewer app without the need of manually applying text effects.
Other Infinity Symbols
Unicode has few other infinity symbols that also you can type with keyboard shortcuts.
| Infinity Symbol | Name | Windows Shortcut | Mac Shortcut |
|---|---|---|---|
| ♾ | Infinity Emoji | Alt + 9854 | Option + 267E |
| ⧜ | Incomplete Infinity | Alt + 10716 | Option + 29DC |
| ⧝ | Tie Over Infinity | Alt + 10717 | Option + 29DD |
| ⧞ | Infinity Negated with Vertical Bar | Alt + 10718 | Option + 29DE |
Infinity Emoji
As mentioned above, infinity emoji symbol has a hexadecimal code 267E. Though the name is same as mathematical infinity, the display of this emoji is different on different applications as below.
| Platform | Display |
|---|---|
| Windows |  |
| Apple |  |
 | |
 | |
 |
Insert Infinity Emoji in Android and iPhone
Since there is an emoji for infinity symbol, you can easily insert it on your Android or iOS smartphone. Remember on Android, you may need a keyboard extension app like Gboard to add emoji support.
- Tap on the emoji icon on your keyboard to switch the keys to emoji.
- Type “infinity” in the search box to filter the symbol.
- Tap on it to insert in the text box.
- Alternatively, you can tap on the symbols emoji icon and then find infinity.
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