H-Bar (Reduced Planck Constant) Symbol (ℏ)
Copy the H-Bar (Reduced Planck Constant) symbol ℏ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does ℏ mean?
ℏ is the reduced Planck constant, h/2π ≈ 1.0546 × 10⁻³⁴ J·s. It appears throughout quantum mechanics, for example in the Schrödinger equation and the uncertainty principle. Its official Unicode name is PLANCK CONSTANT OVER TWO PI.
Codes and properties
| Character | ℏ |
|---|---|
| Unicode name | PLANCK CONSTANT OVER TWO PI |
| Code point | U+210F |
| Decimal | 8463 |
| Unicode block | Letterlike Symbols |
| HTML entity | ℏ · ℏ |
| CSS | \210F |
| JavaScript / JSON | \u210F |
| Python | \u210F or \N{PLANCK CONSTANT OVER TWO PI} |
| UTF-8 bytes | E2 84 8F |
| LaTeX | \hbar |
How to type ℏ
- Copy & paste: press the Copy button above, then paste ℏ anywhere — Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
210Fthen 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
210F; or press Ctrl+Cmd+Space and search “planck constant over two pi”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
210f, then Space. - HTML:
ℏrenders as ℏ. - LaTeX:
\hbarin math mode (amssymb package for some symbols).
Frequently asked questions
How do I type ℏ on Windows?
In Microsoft Word type 210F and press Alt+X. In any app press Win+. to open the symbol panel, or copy ℏ from this page.
How do I type ℏ on a Mac?
Open the Character Viewer with Ctrl+Cmd+Space and search “planck constant over two pi”, or switch to Unicode Hex Input and hold Option while typing 210F.
What is the HTML code for ℏ?
Use ℏ (hex) or ℏ (decimal).
What is the LaTeX command for ℏ?
Use \hbar in math mode.
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Reference: Unicode code chart: Latin-1 Supplement (U+0080–U+00FF)