How to Make Symbols Using the ALT Key
The ALT key can help you access alt codes, or characters that are NOT readily available on a normal keyboard. These codes can be used to write in foreign languages, mathematical equations, or to add fun symbols to your messages. Below ☟ is how to do it on a PC or a Mac, then a list of symbols such as π,º, ♫ and ♥.
Steps

Steps
- Find Alt code.
Numeric code that stands for symbol you want to make. They're all here in Alt codes list. - Enable Num Lock.
Usually Num Lock is a button located on keyboard's right side (on numeric Keypad). It "unlocks" the numeric pad. When you'll enable it, the green Num Lock indicator will shine green. - Press "Alt" (button).
You have to press down and hold Alt key button on your keyboard. Try left, if it doesn't work, try the right one. - Type the Alt code in with Keypad keys.
Do this while holding Alt key pressed. The code needs to be entered on the Numeric keypad (right key pad on usual keyboards). It's a key pad on part of your keyboard. Look at the image to see how it looks. Enter there the numeric Alt code of symbol you want to make. - Release all the keys.
If you did everything right then the symbol should have been inserted after you've released the Alt button.
| Keys (Alt + Code) | Symbols | Symbol Name |
|---|---|---|
| 0153 | ™ | Trademark Symbol |
| 0169 | © | Copyright Symbol |
| 0174 | ® | Registered Trademark Symbol |
| 0176 | ° | Degree Symbol |
| 0177 | ± | Plus-or -Minus Sign |
| 0182 | ¶ | Paragraph Mark |
| 0190 | ¾ | Fraction, Three-Fourths |
| 0215 | × | Multiplication Sign |
| 0162 | ¢ | The Cent Sign |
| 0161 | ¡ | Upside Down Exclamation Point |
| 0191 | ¿ | Upside Down Question Mark |
| 1 | ☺ | Smiley Face |
| 2 | ☻ | Black Smiley Face |
| 15 | ☼ | Sun |
| 12 | ♀ | Female Sign |
| 11 | ♂ | Male Sign |
| 6 | ♠ | Spade |
| 5 | ♣ | Club |
| 3 | ♥ | Heart |
| 4 | ♦ | Diamond |
| 13 | ♪ | Eighth Note |
| 14 | ♫ | Beamed Eighth Note |
| 8721 | ∑ | N-ary Summation (Auto Sum) |
| 251 | √ | Square Root Check Mark |
| 8236 | ∞ | Infinity |
| 24 | ↑ | Up Arrow |
| 25 | ↓ | Down Arrow |
| 26 | → | Right Arrow |
| 27 | ← | Left Arrow |
| 18 | ↕ | up/down Arrow |
| 29 | ↔ | Left Right Arrow |