Alt codes are the classic Windows shortcut for typing characters that are not printed on the keyboard, and the accented O family is one of the most common reasons people reach for them. This guide lists every Alt code for an accented O, explains exactly how the method works, and offers fallbacks for the laptops that no longer have a numeric keypad.
How Alt Codes Work
An Alt code is a number that stands for a character. You hold the Alt key, type the number on the numeric keypad, and release Alt to insert the character. The important detail is the keypad: the row of numbers along the top of the keyboard does not work for this. The number must come from the dedicated keypad, with Num Lock switched on.
Most accented letters use a four digit code that starts with a zero, drawn from the Windows-1252 code page. That leading zero matters, so Alt 0211 and Alt 211 are not the same character.
The O Accent Alt Codes
Here are the codes for the accented O characters that have one. Hold Alt, type the digits on the keypad, and release.
| Character | Name | Alt code |
|---|---|---|
| Ó | O with acute | Alt 0211 |
| ó | o with acute | Alt 0243 |
| Ò | O with grave | Alt 0210 |
| ò | o with grave | Alt 0242 |
| Ô | O with circumflex | Alt 0212 |
| ô | o with circumflex | Alt 0244 |
| Õ | O with tilde | Alt 0213 |
| õ | o with tilde | Alt 0245 |
| Ö | O with two dots | Alt 0214 |
| ö | o with two dots | Alt 0246 |
| Ø | O with stroke | Alt 0216 |
| ø | o with stroke | Alt 0248 |
Characters outside this legacy set, such as the macron Ō or the Hungarian double acute Ő, do not have a short Alt code. For those, copy the character from the finder or use the Unicode input method described below.
The Unicode Alt Method
Windows has a second, less known route that reaches any character. Type the hexadecimal code point, then press Alt and X in some applications such as Word, and the digits transform into the character. For Ō you would type 014C followed by Alt and X. It only works in apps that support it, but where it does it covers the whole Unicode range.
Laptops Without A Keypad
Many laptops drop the numeric keypad to save space, which breaks the classic Alt code method. You have three options: enable the on screen keyboard, which includes a keypad; turn on a hidden keypad layered over the letter keys with the Fn key, if your model has one; or sidestep the whole issue and copy the character from the tool. For occasional use, copying is by far the least fuss.
A practical tip: if you only need one or two accented letters now and then, do not memorise codes at all. Star them on the favourites shelf and copy them. Alt codes pay off only when you type the same characters many times a day.
Common Mistakes
If your Alt code produces the wrong character or nothing at all, check three things. Num Lock must be on. The digits must come from the numeric keypad, not the top row. And the leading zero must be included for the four digit codes. Getting all three right fixes almost every failed attempt.
In Summary
Alt codes give you fast keyboard access to the common accented O characters, from Alt 0211 for Ó to Alt 0216 for Ø, as long as you use the numeric keypad with Num Lock on and keep the leading zero. For characters without a legacy code, or laptops without a keypad, copying from the finder is the simpler path.