U+004B
Kelvin signK
Kelvin sign is a monochrome text character from the Unicode Basic Latin block, listed here under Units & Measurements and Basic Latin (ASCII). Copy it with one click, or use the hex, octal, decimal and HTML entity codes below to embed it in web pages, code, and documents. It is often searched for as "temperature", "unit".
Quick facts
- Unicode
- U+004B
- Decimal
- 75
- Hex
- 0x004B
- Octal
- 0o113
Unicode identity
| Format | Value | Copy |
|---|---|---|
| Code pointOfficial Unicode notation | U+004B | |
| Official nameUnicodeData.txt, Unicode 18.0.0 | LATIN CAPITAL LETTER K | |
| DecimalBase 10 | 75 | |
| HexadecimalBase 16 | 0x004B | |
| OctalBase 8 | 0o113 | |
| BinaryBase 2 | 0000000001001011 | |
| General categoryLetter, uppercase | Lu | |
| Unicode blockU+0000–U+007F | Basic Latin | |
| Plane | Basic Multilingual Plane (BMP, Plane 0) |
HTML & CSS
| Format | Value | Copy |
|---|---|---|
| HTML entity (decimal) | K | |
| HTML entity (hex) | K | |
| CSS content escapeUse inside content: "…" | \004B | |
| URL encodedPercent-encoded UTF-8 | K |
Programming languages
| Format | Value | Copy |
|---|---|---|
| JavaScript / TypeScript | \u004B | |
| JSONUTF-16 surrogate pairs | \u004B | |
| Python | \u004B | |
| Java / C# / Kotlin | \u004B |
Byte encodings
| Format | Value | Copy |
|---|---|---|
| UTF-81 byte | 4B | |
| UTF-16 (BE) | 004B | |
| UTF-32 (BE) | 0000004B |
How to type Kelvin sign
Windows
Hold Alt and type +4B with the hex numeric keypad option enabled, or type 4B then press Alt+X in Word and most Office apps.
macOS
Enable the Unicode Hex Input keyboard, hold Option, and type 004B. Or open Character Viewer (Control+Command+Space) and search "Kelvin sign".
Linux
Press Ctrl+Shift+U, type 4b, then press Space or Enter in GTK apps. IBus and most terminals support the same sequence.
HTML, CSS & code
Paste the character directly, or use the escapes above: K in HTML, \004B in CSS, and \u004B in JavaScript.
Official Unicode reference
- Character name
- LATIN CAPITAL LETTER K
- Block
- Basic Latin (U+0000–U+007F)
- General category
- Lu — Letter, uppercase
Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Basic Latin block: U0000.pdf (PDF, unicode.org).
Frequently asked questions
How do I copy the Kelvin sign symbol?
Click the Copy button at the top of this page, or select K and press Ctrl+C (Cmd+C on Mac). It is plain Unicode text, so it pastes into documents, chats, code, and design tools.
What is the Unicode code point for Kelvin sign?
Kelvin sign is U+004B (decimal 75, hexadecimal 0x004B, octal 0o113). It lives in the Basic Latin block (U+0000–U+007F) of the Basic Multilingual Plane (BMP, Plane 0).
What is the official Unicode name of Kelvin sign?
The Unicode Standard (version 18.0.0) names this character "LATIN CAPITAL LETTER K". Its General_Category is Lu (Letter, uppercase).
What is the HTML code for Kelvin sign?
Use K or K. In CSS, use content: "\004B".
How do I type Kelvin sign in code?
JavaScript: "\u004B". Python: "\u004B". JSON and Java: "\u004B". The UTF-8 byte sequence is 4B.
Is Kelvin sign an emoji?
No. Kelvin sign is a text symbol and renders as a monochrome glyph in the current font. Some platforms may offer an emoji variant when U+FE0F is appended.