Latin character O with diaeresis
About this character
The character ö is known as Latin character O with diaeresis and carries the Unicode code point U+00F6, which is 246 in decimal. It belongs to the Latin-1 Supplement block (U+0080–U+00FF), which gathers the accented letters of Western European languages along with the punctuation and symbols inherited from ISO 8859-1.
In memory, ö takes 2 bytes in UTF-8 (0xC3 0xB6) and 1 in UTF-16 (0x00F6). That difference is why badly configured forms or databases garble this character: they assume one byte per character.
How to type ö
| System | What to do |
|---|---|
| Windows | On Windows, hold Alt and type 246 on the numeric keypad. In Word or WordPad, type 00F6 and press Alt + X to turn the code into the character. |
| macOS | On a Mac using the ABC/US layout, ⌥ + U, then O produces this character directly. |
| Linux | On Linux (GTK), type Ctrl + ⇧ + U, 00F6 then press Enter. |
| HTML / Web | In an HTML page, write ö. Use \00F6 in CSS, \u00F6 in JavaScript and \u00F6 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 ö
This character sits directly on the following ClavierVirtuel layouts, where you can click it with the mouse:
Codes and encodings
| Property | Value |
|---|---|
| Code point | U+00F6 |
| Unicode block | Latin-1 Supplement (U+0080–U+00FF) |
| Decimal | 246 |
| Hexadecimal | 0x00F6 |
| Octal | 0366 |
| Binary | 11110110 |
| UTF-8 bytes | 0xC3 0xB6 |
| UTF-16 units | 0x00F6 |
| Named HTML entity | ö |
| Decimal HTML entity | ö |
| Hex HTML entity | ö |
| CSS escape | \00F6 |
| JavaScript escape | \u00F6 |
| Python escape | \u00F6 |
| URL encoding | %C3%B6 |
Frequently asked questions
What is the Unicode code for ö?
Its code point is U+00F6, which is 246 in decimal and 0366 in octal. In HTML you can write it as ö or ö.
Why does ö show up as a box or a question mark?
An empty box means the font has no glyph for U+00F6. 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 ö in a filename, a URL or a password?
In a URL it must be encoded as %C3%B6. Modern filesystems accept it, though it is still risky when moving files between systems. For passwords, some forms reject non-ASCII characters outright.