| HTML Entity (dec) | ⇡ |
| HTML Entity (hex) | ⇡ |
| UTF-8 (hex) | 0xe287a1 / 0xe2 0x87 0xa1 (3 bytes) |
| UTF-8 (dec) | 226, 135, 161 (3 bytes) |
| UTF-16-BE (hex) | 0x21e1 / 0x21 0xe1 (2 bytes) |
| UTF-16-BE (dec) | 33, 225 (2 bytes) |
| UTF-32-BE (hex) | 0x21e1 / 0x00 0x00 0x21 0xe1 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 33, 225 (4 bytes) |
| C/C++/Java source code | "\u21e1" |
| Python source code | "\u21e1" |