| HTML Entity (dec) | ё |
| HTML Entity (hex) | ё |
| UTF-8 (hex) | 0xd191 / 0xd1 0x91 (2 bytes) |
| UTF-8 (dec) | 209, 145 (2 bytes) |
| UTF-16-BE (hex) | 0x451 / 0x04 0x51 (2 bytes) |
| UTF-16-BE (dec) | 4, 81 (2 bytes) |
| UTF-32-BE (hex) | 0x451 / 0x00 0x00 0x04 0x51 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 4, 81 (4 bytes) |
| C/C++/Java source code | "\u0451" |
| Python source code | "\u0451" |