Keyboard Alt Codes & Unicode Details
Need to type these symbols directly using physical keyboard shortcuts on Windows? Use the following Alt Code chart:
| Symbol | Name | Windows Alt Code | Unicode Hex | HTML Entity |
|---|---|---|---|---|
| π | Greek Small Letter Pi | Alt + 227 | U+03C0 |
π |
| ∞ | Infinity Symbol | Alt + 236 | U+221E |
∞ |
| √ | Square Root | Alt + 251 | U+221A |
√ |
| ∑ | Summation (N-Ary Sigma) | Alt + 228 | U+2211 |
∑ |
| ≈ | Almost Equal To | Alt + 247 | U+2248 |
≈ |
| ≠ | Not Equal To | Alt + 8800 | U+2260 |
≠ |
| ≤ | Less-Than or Equal To | Alt + 243 | U+2264 |
≤ |
| ≥ | Greater-Than or Equal To | Alt + 242 | U+2265 |
≥ |
| ± | Plus-Minus Sign | Alt + 241 | U+00B1 |
± |
| ÷ | Division Sign | Alt + 246 | U+00F7 |
÷ |
About Math Symbols
Mathematical and scientific symbols allow students, researchers, engineers, and teachers to write clean formulas, equations, and technical posts across web forums and social media without LaTeX.
How to Copy and Paste on Mobile & Desktop
- Click or Tap: Click any symbol tile in the grid above to copy it instantly to your clipboard.
- Combine in Tray: Click multiple symbols to automatically collect them in the bottom floating tray.
- Paste Anywhere: Open Instagram, TikTok, WhatsApp, Discord, or games like PUBG and paste directly.
💡 Pro Tip for Social Media Bios
Using these symbols at the start of bullet points increases scannability by up to 40% compared to plain dashes or asterisks.
Frequently Asked Questions
On Windows, hold Alt and type 236 on the number pad (Alt + 236). On Mac, press Option + 5.
On Windows, hold Alt and type 251 on the number pad (Alt + 251). On Mac, press Option + V.
Yes! Because these are standard Unicode characters, you can copy and paste them directly into any document, spreadsheet, or slide.