Shape White Up-Pointing Triangle
About this character
The character △ is known as Shape White Up-Pointing Triangle and carries the Unicode code point U+25B3, which is 9651 in decimal. It belongs to the Geometric Shapes block (U+25A0–U+25FF), which gathers squares, circles, triangles and diamonds used as bullets, markers or diagram elements.
In memory, △ takes 3 bytes in UTF-8 (0xE2 0x96 0xB3) and 1 in UTF-16 (0x25B3). That difference is why badly configured forms or databases garble this character: they assume one byte per character.
How to type △
| System | What to do |
|---|---|
| Windows | In Word or WordPad, type 25B3 and press Alt + X to turn the code into the character. |
| macOS | On a Mac, open the Character Viewer with Ctrl + ⌘ + Space and search for “Shape White Up-Pointing Triangle”. |
| Linux | On Linux (GTK), type Ctrl + ⇧ + U, 25B3 then press Enter. |
| HTML / Web | In an HTML page, write △. Use \25B3 in CSS, \u25B3 in JavaScript and \u25B3 in Python. |
| On this site | The simplest route is the Copy button above: the character goes straight to your clipboard, ready to paste anywhere. |
Keyboards that include △
This character is not on any common physical layout, so the Copy button above is the quickest way to get it into a document.
Codes and encodings
| Property | Value |
|---|---|
| Code point | U+25B3 |
| Unicode block | Geometric Shapes (U+25A0–U+25FF) |
| Decimal | 9651 |
| Hexadecimal | 0x25B3 |
| Octal | 022663 |
| Binary | 10010110110011 |
| UTF-8 bytes | 0xE2 0x96 0xB3 |
| UTF-16 units | 0x25B3 |
| Named HTML entity | None |
| Decimal HTML entity | △ |
| Hex HTML entity | △ |
| CSS escape | \25B3 |
| JavaScript escape | \u25B3 |
| Python escape | \u25B3 |
| URL encoding | %E2%96%B3 |
Frequently asked questions
What is the Unicode code for △?
Its code point is U+25B3, which is 9651 in decimal and 022663 in octal. In HTML you can write it as △ or △.
Why does △ show up as a box or a question mark?
An empty box means the font has no glyph for U+25B3. The character is still in the text: switching to a font that covers the block (Noto, DejaVu or Segoe UI Symbol) makes it appear.
Can I use △ in a filename, a URL or a password?
In a URL it must be encoded as %E2%96%B3. Modern filesystems accept it, though it is still risky when moving files between systems. For passwords, some forms reject non-ASCII characters outright.