ℝ

Real Numbers Symbol (ℝ)

Copy the Real Numbers symbol ℝ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.

What does ℝ mean?

Double-struck R (ℝ) denotes the set of real numbers. ℝ² is the plane and ℝⁿ is n-dimensional space. Its official Unicode name is DOUBLE-STRUCK CAPITAL R.

Codes and properties

Character	ℝ
Unicode name	DOUBLE-STRUCK CAPITAL R
Code point	U+211D
Decimal	8477
Unicode block	Letterlike Symbols
HTML entity	ℝ · ℝ
CSS	\211D
JavaScript / JSON	\u211D
Python	\u211D or \N{DOUBLE-STRUCK CAPITAL R}
UTF-8 bytes	E2 84 9D
LaTeX	\mathbb{R}

How to type ℝ

Copy & paste: press the Copy button above, then paste ℝ anywhere — Word, Google Docs, email, chat or code.
Windows (Word, WordPad, Outlook): type 211D then press Alt+X. In any app, Win+. opens the symbol panel.
Mac (any symbol): switch to the Unicode Hex Input keyboard, hold Option and type 211D; or press Ctrl+Cmd+Space and search “double-struck capital r”.
Linux (GTK/IBus): press Ctrl+Shift+U, type 211d, then Space.
HTML: ℝ renders as ℝ.
LaTeX: \mathbb{R} in math mode (amssymb package for some symbols).

Frequently asked questions

How do I type ℝ on Windows?

In Microsoft Word type 211D and press Alt+X. In any app press Win+. to open the symbol panel, or copy ℝ from this page.

How do I type ℝ on a Mac?

Open the Character Viewer with Ctrl+Cmd+Space and search “double-struck capital r”, or switch to Unicode Hex Input and hold Option while typing 211D.

What is the HTML code for ℝ?

Use ℝ (hex) or ℝ (decimal).

What is the LaTeX command for ℝ?

Use \mathbb{R} in math mode.

Keep exploring

Reference: Unicode code chart: Latin-1 Supplement (U+0080–U+00FF)