Math Symbols ALT Codes (Keyboard Shortcuts)

The table below is a list of all the math symbols ALT codes that you can use as shortcuts to enter any mathematical symbol with your keyboard.

If you already know how to use ALT codes, simply browse the list below to find the alt codes for the symbol you need.

If you are not already familiar with using ALT codes, find and note down the ALT code for the math symbol you need to enter, then open this instructions page on how to use ALT codes, or scroll down below the table for a brief step by step guide.

List of Math Symbols ALT Codes

DescriptionSymbolALT Code
Per MilleAlt + 0137
Not Symbol¬Alt + 0172
Degree°Alt + 0176
Plus or Minus±Alt + 0177
Power of Two (Square)²Alt + 0178
Power of Three (Cube)³Alt + 0179
MicronµAlt + 0181
One fourth fraction¼Alt + 0188
One half fraction½Alt + 0189
Three fourth fraction¾Alt + 0190
Multiply×Alt + 0215
PhiΦAlt + 0216
Division÷Alt + 0247
Angle Measurement?Alt + 128208
SummationAlt + 8721
Minus or PlusAlt + 8723
Square RootAlt + 8730
Cube RootAlt + 8731
Fourth RootAlt + 8732
Open InfinityAlt + 8733
Closed InfinityAlt + 8734
L symbolAlt + 8735
AngleAlt + 8737

How to use Math Symbols ALT Codes

Windows has a very interesting way (or shortcuts) of typing Math symbols that do not have a corresponding key on the keyboard. You can insert any Mathematical symbol you want by holding down the ALT key, typing the symbol’s ALT codes, then releasing the ALT key.

It is called the ALT code method. I consider this the best method for typing math symbols on Windows.

Below are the steps you may use to type any Math symbol using the ALT code method:

  • Open your text editor where you want to type the symbol.
  • Click your cursor exactly where you want to type the symbol.
  • Press and hold down the Alt key.
  • Whilst pressing down the Alt key, type the symbol’s Alt code. (E.g. ALT + 0137 will give you the Per Mille Symbol)
  • Then release the Alt key.
The degree symbol alt code shortcut

NOTE: The ALT code method works on PC or Laptop keyboards with the separate numeric keypad on the right. If your keyboard doesn’t have this number pad, press Fn+NmLk to activate it or connect an external keyboard.


As seen above, this is a comprehensive list of all the popular math symbols and ALT codes along with instructions on how to insert them using the ALT code shortcut.

You can also explore our complete list of over 200 Windows ALT codes.

For any questions or suggestions about these math ALT codes, please leave a comment below.

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