Radioactive Symbol codes and values
| Format | Value |
|---|---|
| Unicode | U+2622 |
| HTML (decimal) | ☢ |
| HTML (hex) | ☢ |
| CSS | \2622 |
| JavaScript | \u2622 |
The official Unicode name is "Radioactive Sign".
How to type the radioactive symbol
Windows
- In Microsoft Word, type
2622and press Alt + X to turn the code into ☢. - Or press Win + . to open the emoji and symbol panel and search for it.
Mac
- Press Control + Command + Space to open the Character Viewer and search for "radioactive sign".
- Or add the "Unicode Hex Input" keyboard in System Settings, hold Option and type
2622.
Linux
- In GTK apps press Ctrl + Shift + U, type
2622and press Enter.
Web pages
Write ☢ in HTML, or paste the character directly into a UTF-8 page.
Encoding details
| Encoding | Value |
|---|---|
| Code point | U+2622 (decimal 9762) |
| UTF-8 bytes | E2 98 A2 |
| URL encoded | %E2%98%A2 |
| Category | So |
What the radioactive symbol means
The trefoil design alerts personnel to the presence of ionizing radiation or radioactive materials. Nuclear facilities, medical imaging departments, and shipping labels use it to enforce distance, shielding, and exposure time limits.
Using the radioactive symbol well
Insert the character via Unicode U+2622 in digital safety warnings. Pair it with standardized text explaining the exact hazard level, since graphical symbols alone cannot convey quantitative risk data to all audiences.
Characters next to it in Unicode
| Character | Code | Name |
|---|---|---|
| ☟ | U+261F | White Down Pointing Index |
| ☠ | U+2620 | Skull And Crossbones |
| ☡ | U+2621 | Caution Sign |
| ☣ | U+2623 | Biohazard Sign |
| ☤ | U+2624 | Caduceus |
| ☥ | U+2625 | Ankh |
FAQ
What is the Unicode for the radioactive symbol?
The radioactive symbol ☢ is U+2622 (Radioactive Sign).
How do I type ☢ on a keyboard?
There is no classic Alt code for it. On Windows type 2622 in Word and press Alt + X, on Mac use the Character Viewer, and on Linux press Ctrl + Shift + U then 2622.
What is the HTML code for ☢?
Use ☢. The hexadecimal form is ☢.
More symbols
- μ Mu Symbol: previous page
- ∈ Element of Symbol: next page
- Symbols to copy and paste: the full list