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How Do I Get The Hashtag Symbol On My Keyboard?

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Last updated on 3 min read
Quick Fix: Press Shift + 3 on a US keyboard or Option + 3 on a UK keyboard to type #.

What's Happening

That little # symbol you're hunting for? It's hiding in plain sight. On most keyboards, it shares a key with the number 3. You'll only see it when you press Shift (or Option on UK Mac keyboards). This setup dates back to the days when symbols like #, $, and % were secondary characters on number keys. Funny how something so simple became essential once Twitter and Instagram turned it into the internet's favorite organizer National Geographic.

Step-by-Step Solution

Let's get you typing that symbol right now. Pick the setup that matches your gear:

  1. US QWERTY Keyboard (Windows or Mac)
    • Find that key with both 3 and # on it—usually the third key from the left on the top row.
    • Hold down Shift.
    • Press the 3/# key once.
    • Let go of both keys. There's your #.
  2. UK QWERTY Keyboard (Windows)
    • Hold Shift.
    • Press the key with both 3 and # (same physical key as the US layout).
    • Release both keys. The # should appear.
  3. UK QWERTY Keyboard (Mac)
    • Hold the Option (⌥) key.
    • Press the 3 key.
    • Release both keys. You'll get your #.
  4. Alternative in Word Processors
    • Microsoft Word 365 (version 2406 or later, as of 2026): Go to Insert → Symbol → More Symbols → Special Characters → Hash Sign (#) → Insert.
    • Google Docs: Go to Insert → Special Characters, type “number sign” in the search box, then click the # symbol from the results.
    • LibreOffice Writer: Go to Insert → Special Character, search for “hash”, and select it.

If This Didn't Work

Still not seeing the #? Don't panic. Try these troubleshooting steps:

  • Check your keyboard layout:
    • Windows 12: Head to Settings → Time & Language → Language & Region. Make sure your input method is set to “English (US)” or “English (UK)”.
    • macOS Sequoia (15.x): Open System Settings → Keyboard → Input Sources and double-check that you've got the right layout selected.
  • Enable Num Lock on full-size keyboards:

    If you're using the numeric keypad (usually on the right side), press the Num Lock key. When Num Lock is off, the keypad might not register Shift + 3 correctly.

  • Use the system symbol picker:
    Operating System Shortcut
    Windows Press Windows + . (period) to open the emoji & symbols panel. Switch to the Symbols tab and scroll until you find #.
    macOS Press Control + Command + Space to open the Character Viewer. Type “number sign” in the search box and double-click #.

Prevention Tips

Want to avoid this hassle next time? A few simple habits make all the difference:

  • Update your operating system regularly. Both Windows 12 and macOS Sequoia (as of 2026) include better keyboard layout detection and accessibility features that help prevent symbol mix-ups Microsoft Support.
  • Match your keyboard to your system layout. Plugging a US layout keyboard into a UK system? You'll get £ when you press Shift + 3. Keep your keyboard layout consistent with your operating system.
  • Give your keyboard some TLC. Dust and crumbs can make keys sluggish. A quick blast of compressed air or a soft brush every few months keeps the 3/# key clicking smoothly. Skip the harsh cleaners—they can eat away at the keyboard coating over time.
Edited and fact-checked by the TechFactsHub editorial team.
Alex Chen

Alex Chen is a senior tech writer and former IT support specialist with over a decade of experience troubleshooting everything from blue screens to printer jams. He lives in Portland, OR, where he spends his free time building custom PCs and wondering why printer drivers still don't work in 2026.