How to Add an Umlaut in Microsoft Word

Umlauts — those two dots sitting above a vowel (ä, ö, ü, Ä, Ö, Ü) — appear in German, Swedish, Finnish, Turkish, and several other languages. If you're typing a name like Müller, a place like Düsseldorf, or working with any document that requires accurate foreign-language spelling, getting the umlaut right matters. Word gives you several ways to do it, and which method works best depends on how often you need it and how your system is set up.

What an Umlaut Actually Is

An umlaut is a diacritic mark — a modifier added to a base letter to change its pronunciation. The word itself is German for "sound change." In computing terms, these characters exist as standard entries in Unicode, so they're fully supported in Word across all platforms. The challenge isn't compatibility — it's input. Most English-language keyboards don't have dedicated umlaut keys, so you need a workaround.

Method 1: Keyboard Shortcuts (Windows)

Microsoft Word on Windows includes a built-in shortcut system for accented characters. For umlauts specifically:

  • Press Ctrl + Shift + : (colon), release the keys, then type the vowel you want.
  • For example: Ctrl + Shift + : → then u produces ü
  • Capitalize by holding Shift when you type the vowel: Ctrl + Shift + :Shift + U produces Ü

This works for a, e, i, o, u and their uppercase versions. It's a Word-native shortcut, meaning it only functions inside Word — not in other applications.

CharacterShortcut
äCtrl + Shift + : → a
öCtrl + Shift + : → o
üCtrl + Shift + : → u
ÄCtrl + Shift + : → Shift + A
ÖCtrl + Shift + : → Shift + O
ÜCtrl + Shift + : → Shift + U

Method 2: Insert Symbol (All Versions) 🔡

If shortcuts feel awkward, Word's Insert Symbol dialog is the most reliable fallback:

  1. Place your cursor where you want the character.
  2. Go to InsertSymbolMore Symbols.
  3. In the dialog box, set the font to your current document font.
  4. In the Subset dropdown, choose Latin Extended-A or type the character name in the search field.
  5. Select your umlaut character and click Insert.

This method works on both Windows and Mac and doesn't require memorizing any shortcuts. It's slower for high-frequency use but perfectly fine if you need an umlaut occasionally.

Method 3: Alt Codes (Windows Only)

On Windows, you can use Alt codes with the numeric keypad:

  • ä = Alt + 0228
  • ö = Alt + 0246
  • ü = Alt + 0252
  • Ä = Alt + 0196
  • Ö = Alt + 0214
  • Ü = Alt + 0220

Hold Alt, type the number on the numeric keypad (not the top-row numbers), then release. This works system-wide — not just in Word — but requires a keyboard with a numeric keypad. Laptops without one need Num Lock + function key combinations, which varies by manufacturer.

Method 4: Mac Keyboard Shortcut

On a Mac, the approach is different and arguably simpler:

  • Hold Option + U, release, then type the vowel.
  • This works across most macOS apps, including Word for Mac.

Unlike the Windows Word shortcut, this is an operating system-level input method, so it functions in browsers, notes apps, and anywhere else you type.

Method 5: Change Keyboard Language Input

If you regularly type in German or another umlaut-heavy language, the most efficient long-term approach is adding a German (or other language) keyboard layout in your OS settings.

  • On Windows: Settings → Time & Language → Language → Add a language → add German → switch via the taskbar language indicator.
  • On Mac: System Settings → Keyboard → Input Sources → add German.

With a German layout active, ä, ö, ü have dedicated keys. You toggle between layouts as needed. This is the preferred approach for anyone doing sustained multilingual writing, though it introduces a learning curve since key positions shift.

Method 6: AutoCorrect as a Custom Workaround

Word's AutoCorrect feature lets you define custom substitutions. You could set up a rule so that typing something like :ue: automatically becomes ü. To configure this:

  1. Go to FileOptionsProofingAutoCorrect Options.
  2. In the Replace field, type your trigger text.
  3. In the With field, paste the umlaut character.
  4. Click Add.

This approach is entirely personal — you define the triggers that make sense to you. It's fast once set up, but the shortcuts only exist on the specific installation where you created them. 💡

The Variables That Shape Which Method Works for You

A few factors determine which of these methods fits your situation:

  • Frequency of use: Occasional umlauts → Insert Symbol or Alt code. Regular use → learn the Word shortcut or switch to a language keyboard.
  • Device type: No numeric keypad means Alt codes become inconvenient. Mac users have a simpler built-in option.
  • Version of Word: Word for the web (browser-based) doesn't support all keyboard shortcuts — you may need to rely on copy-paste or the Insert Symbol path.
  • Whether you type multilingual documents regularly: Language input switching is efficient at scale but disruptive if German is only 5% of your workload.
  • Shared computers or restricted settings: Custom AutoCorrect rules and language installs may not persist or be available on managed corporate machines.

Someone typing occasional German names in an otherwise English document will land on a very different preferred method than a translator producing full German-language reports daily. The right approach is less about which method is objectively best and more about where your typing habits, hardware, and workflow intersect. 🖥️