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:
- 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 #.
- 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.
- UK QWERTY Keyboard (Mac)
- Hold the Option (⌥) key.
- Press the 3 key.
- Release both keys. You'll get your #.
- 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.