How to type Diameter Symbol on Keyboard

In today’s article, you’ll learn about all the simple methods you can use to type the Diameter symbol using either Windows or Mac.

You can also use the button below to copy and paste the Diameter symbol.

However, keep reading if you just want to learn how this symbol is typed on the keyboard.

Diameter symbol [Ø] Quick Guide


To type the Diameter symbol on Mac, press Option + Shift + O on your keyboard. For Windows users, press down the Alt key and type 0216 using the numeric keypad, then release the Alt key. These shortcuts work in both Microsoft Word, Excel, and PowerPoint and anywhere on the Windows or Mac PC.

The table below provides a quick guide for the Diameter sign.

Symbol NameDiameter Symbol
Alt Code0216
Shortcut for Windows[Alt] + [0216]
Shortcut for MacOption + Shift + O
Diameter symbol shortcut

The above quick guide provides some useful information about the Diameter sign. However, below are other options you can also use to type this symbol in Word/Excel/PowerPoint.

Diameter symbol [Ø] Alt Code for Windows

The Diameter symbol alt code is 0216.

If you are looking for how you can type this symbol on the keyboard, then you’ve found it with this Alt Code method. Just obey the following instructions:

  • Place the insertion pointer where you need to type the Diameter symbol.
  • Press and hold the Alt key on your keyboard.
  • Whilst holding on to the Alt key, press the Diameter sign alt code (0216) using the numeric keypad.
  • Release the Alt key after typing the Alt code to insert the symbol into your Word document.
diameter symbol alt code

This is how you may type this symbol on Windows using the Alt Code method.

The alt code method works only for Windows. The next section will show you how to type it on Mac using a keyboard shortcut.

How to type Diameter symbol on Mac

The keyboard shortcut to type the Diameter symbol on Mac is Option + Shift + O.

Diameter sign shortcut for Mac

Obey the following instructions to type this symbol on Mac using the keyboard shortcut stated above:

  • First of all, place the insertion pointer where you need to type this symbol.
  • Then press Option + Shift + O simultaneously on your Mac keyboard.

With this keyboard shortcut, you can type the Diameter symbol anywhere on your Mac computer.

How to insert the Diameter symbol in Word/Excel

Using the insert symbol dialog box, you can insert any symbol into any of the Office apps including MS Word, Excel, and PowerPoint.

The insert symbol dialog box is a library of symbols from where you can insert any symbol into your Word document with just a couple of mouse clicks.

Using this dialog, you can insert the Diameter symbol in any of the office programs including Word, Excel, and PowerPoint.

In this section, I am going to show you a step by step guide to add the Diameter sign or any other symbol that is not found on the keyboard.

Without any further ado, let’s get started.

  • Launch your Word or Excel or PowerPoint document.
  • Click to place the insertion pointer where you wish to insert the symbol.
  • Go to the Insert tab.
Click on the Insert tab
  • In the Symbols category, click on the Symbol drop-down and select More Symbols.
Go to Symbols>More Symbols
  • The Symbol dialog box will appear. In the Subset drop-down list, select Latin-1 Supplement to display symbols in this category which includes the Diameter symbol.
  • Now select the symbol you want and hit the Insert button to get it into your document. Alternatively, double click on it to insert it into your document.
insert o with slash in Word or Excel
  • Close the dialog.

The symbol will then be inserted exactly where you place the insertion pointer.

These are the steps you may use to insert the Diameter symbol or any other symbol into your Word/Excel document.

Copy and Paste Diameter symbol

One of the easiest ways to get any symbol on any PC is to use the copy and paste method.

All you have to do is to copy the symbol from somewhere like a web page or the character map for windows users, and head over to where you need the symbol then hit Ctrl+V to paste.

To copy and paste the Diameter symbol, select it (Ø) and press Ctrl+C to copy, switch over to where you need it and press Ctrl+V to paste.


You can also use the copy button at the beginning of this article.

For windows users, you may also obey the following instructions to copy and paste this symbol using the character map dialog.

  • Click on the Start button and search for Character Map. Click to open the Character map app in the search results.
search for character map on windows
  • The Character Map dialog will appear. Click on the Advanced view check box to expand the dialog box for more options.
Check the Advanced view checkbox to expand the dialog
  • On the advanced view, type “O with” in the Search box at the bottom of the dialog.
  • You should now see the Diameter symbol on the character map dialog. Double click on the symbol to select it. Alternatively, click on the Select button.
  • After you select the symbol, it’ll appear in the Characters to copy: field, hit on the Copy button to copy.
copy o with slash through it
  • Now switch to where ever you wish to insert the symbol and press Ctrl+V to paste.

This is how you may use the Character Map dialog to copy and paste any symbol on Windows PC.


As shown in this article, there are several methods you can use to type or insert the Diameter sign on your PC or Mac.

My favorite approach on Windows is to use the Alt code method, it’s a lot easier provided you know the alt code for the symbol you wish to type. For Mac users, using the keyboard shortcut comes handy.

If you still want something to be clarified about this symbol, please let me know in the comments section below.

Thank you!

Abdulai Abarika

My name is Abdulai Abarika , and I am the person behind this blog. I am a lifelong learner that is constantly fascinated by technology. I believe that fundamentally, all computer users are typists. So, learning how to type was the first step I took when I first decided to learn about technology. This blog is about teaching you how to type the symbols or characters hidden on the keyboard.

Recent Posts