U+211D
Real numbersℝ
Real numbers is a monochrome text character from the Unicode Letterlike Symbols block, listed here under Math. 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.
Quick facts
- Unicode
- U+211D
- Decimal
- 8477
- Hex
- 0x211D
- Octal
- 0o20435
Unicode identity
| Format | Value | Copy |
|---|---|---|
| Code pointOfficial Unicode notation | U+211D | |
| Official nameUnicodeData.txt, Unicode 18.0.0 | DOUBLE-STRUCK CAPITAL R | |
| Unicode 1.0 nameLegacy alias | DOUBLE-STRUCK R | |
| DecimalBase 10 | 8477 | |
| HexadecimalBase 16 | 0x211D | |
| OctalBase 8 | 0o20435 | |
| BinaryBase 2 | 0010000100011101 | |
| General categoryLetter, uppercase | Lu | |
| Unicode blockU+2100–U+214F | Letterlike Symbols | |
| Plane | Basic Multilingual Plane (BMP, Plane 0) |
HTML & CSS
| Format | Value | Copy |
|---|---|---|
| HTML entity (decimal) | ℝ | |
| HTML entity (hex) | ℝ | |
| CSS content escapeUse inside content: "…" | \211D | |
| URL encodedPercent-encoded UTF-8 | %E2%84%9D |
Programming languages
| Format | Value | Copy |
|---|---|---|
| JavaScript / TypeScript | \u211D | |
| JSONUTF-16 surrogate pairs | \u211D | |
| Python | \u211D | |
| Java / C# / Kotlin | \u211D |
Byte encodings
| Format | Value | Copy |
|---|---|---|
| UTF-83 bytes | E2 84 9D | |
| UTF-16 (BE) | 211D | |
| UTF-32 (BE) | 0000211D |
How to type Real numbers
Windows
Hold Alt and type +211D with the hex numeric keypad option enabled, or type 211D then press Alt+X in Word and most Office apps.
macOS
Enable the Unicode Hex Input keyboard, hold Option, and type 211D. Or open Character Viewer (Control+Command+Space) and search "Real numbers".
Linux
Press Ctrl+Shift+U, type 211d, 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: ℝ in HTML, \211D in CSS, and \u211D in JavaScript.
Official Unicode reference
- Character name
- DOUBLE-STRUCK CAPITAL R
- Unicode 1.0 name
- DOUBLE-STRUCK R
- Block
- Letterlike Symbols (U+2100–U+214F)
- General category
- Lu — Letter, uppercase
Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Letterlike Symbols block: U2100.pdf (PDF, unicode.org).
Frequently asked questions
How do I copy the Real numbers symbol?
Click the Copy button at the top of this page, or select ℝ 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 Real numbers?
Real numbers is U+211D (decimal 8477, hexadecimal 0x211D, octal 0o20435). It lives in the Letterlike Symbols block (U+2100–U+214F) of the Basic Multilingual Plane (BMP, Plane 0).
What is the official Unicode name of Real numbers?
The Unicode Standard (version 18.0.0) names this character "DOUBLE-STRUCK CAPITAL R"; its Unicode 1.0 name was "DOUBLE-STRUCK R". Its General_Category is Lu (Letter, uppercase).
What is the HTML code for Real numbers?
Use ℝ or ℝ. In CSS, use content: "\211D".
How do I type Real numbers in code?
JavaScript: "\u211D". Python: "\u211D". JSON and Java: "\u211D". The UTF-8 byte sequence is E2 84 9D.
Is Real numbers an emoji?
No. Real numbers 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.