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**

Description | Symbol | ALT Code |

Per Mille | ‰ | Alt + 0137 |

Not Symbol | ¬ | Alt + 0172 |

Degree | ° | Alt + 0176 |

Plus or Minus | ± | Alt + 0177 |

Power of Two (Square) | ² | Alt + 0178 |

Power of Three (Cube) | ³ | Alt + 0179 |

Micron | µ | Alt + 0181 |

One fourth fraction | ¼ | Alt + 0188 |

One half fraction | ½ | Alt + 0189 |

Three fourth fraction | ¾ | Alt + 0190 |

Multiply | × | Alt + 0215 |

Phi | Φ | Alt + 0216 |

Division | ÷ | Alt + 0247 |

Angle Measurement | ? | Alt + 128208 |

Summation | ∑ | Alt + 8721 |

Minus or Plus | ∓ | Alt + 8723 |

Square Root | √ | Alt + 8730 |

Cube Root | ∛ | Alt + 8731 |

Fourth Root | ∜ | Alt + 8732 |

Open Infinity | ∝ | Alt + 8733 |

Closed Infinity | ∞ | Alt + 8734 |

L symbol | ∟ | Alt + 8735 |

Angle | ∡ | Alt + 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.

*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.*

**Conclusion**

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.