| Codepage | Character | Description | UTF-8 codepoint | UTF-8 bytes |
|---|---|---|---|---|
| DOS / 437 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 720 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 737 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 850 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 852 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 855 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 858 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 866 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| DOS / 869 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-1 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-10 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-11 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-13 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-14 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-15 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-16 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-2 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-3 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-4 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-5 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-6 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-7 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-8 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| ISO/IEC / ISO-8859-9 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1250 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1251 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1252 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1253 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1254 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1255 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1256 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1257 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |
| Windows / Windows-1258 | O | LATIN CAPITAL LETTER O | U+004F | 0x4F |