34 math symbols for the symbols that make writing unambiguous. Tap any character to copy it — including the plain-text versions that survive any font.
Tap or click a character and it goes straight to your clipboard. These are Unicode text characters, not images, so they paste into any text field.
Mathematics is the one place where the exact symbol matters. A real not-equal sign, a real plus-minus and a real infinity leave no room for misreading, which is exactly why the typed approximations like ~= or sqrt are a bad habit worth dropping.
There are 34 characters in this set. The grid above is the fastest way to take one — tap it and it is on your clipboard. The table below is the reference: the Unicode name of each character and the job people normally give it, so you can pick the right one instead of guessing from the shape.
| Symbol | Unicode name | Used for |
|---|---|---|
| ≠ | Not equal to | the correct symbol for inequality |
| ≈ | Almost equal to | used for approximations — far better than typing ~= |
| ± | Plus-minus sign | tolerances and ranges |
| ∞ | Infinity | limits and unbounded values |
| √ | Square root | the radical sign, with ∛ for cube roots |
| ∑ | N-ary summation | the sigma used for series |
| ∫ | Integral | calculus notation |
| ≤ | Less-than or equal to | the real symbol, not a typed approximation |
| ∴ | Therefore | logic and proofs |
| ° | Degree sign | angles and temperature |
Every character on this page is a button, and the steps are identical on a phone, a tablet and a desktop:
Nothing is installed and nothing is uploaded. These are standard Unicode characters, so the device you are already holding knows how to draw them.
Ordinary text is safe everywhere. The problems start with two groups: characters that need a font the receiving device may not ship with, and applications that deliberately filter what you can type.
| Place | Works? | What to expect |
|---|---|---|
| Instagram, TikTok, X bio and captions | Yes | Symbols and emoji both display; a handful of rare glyphs may render as a box on older Android versions |
| Discord display name and messages | Yes | Almost everything works, including the rarer box-drawing characters |
| WhatsApp, Telegram, Signal | Yes | Full support for emoji and symbols |
| Word, Google Docs, Excel, Sheets | Yes | Fine on a desktop; fonts on older Office installs may miss the newest glyphs |
| Most online games (usernames) | Sometimes | Many titles strip anything outside their font. Test with one symbol first |
| SMS | Yes, but | An emoji can push a message into a longer billing segment |
The practical rule: if you are decorating a bio or a document, paste freely. If you are building a username that has to survive a game login screen, start with one character, confirm it appears, then add the rest.