To insert the diameter symbol in PowerPoint: Place the insertion pointer at where you want to insert the symbol. Turn on the NUM LOCK key. Press and hold the Alt key. While still holding on to the Alt key, type the symbol’s alt code: 0216 Then release the Alt key.

There are three different ways to insert the diameter symbol in Microsoft Apps such as Word, Excel and PowerPoint. The quickest way is to use the keyboard combination [Alt] + 8960. Make sure to hold down the Alt key while entering the number sequence. You can also use Unicode: Type the Unicode 2300 or U+2300 and then press [Alt] + [x].

Below steps will show you how to insert the Symbol for Diameter in Word or Excel or PowerPoint. Open your Word or Excel or PowerPoint. Go to the Insert Tab. At the far right section, you’ll see the Symbols group. Select Symbol > More Symbols. The Symbol window will appear as below. From this window, you can find the symbol (Ø).