Angstrom sign (Å) is Unicode U+212B in the Letterlike Symbols block. It stands for the ångström — a length unit equal to 0.1 nanometre, used in spectroscopy and atomic-scale science. HTML5 has no named entity for U+212B.
Remember
Character Å
Unicode U+212B
Hex entity Å
Decimal Å
CSS escape \212B
Named entity (none for U+212B)
Related Å U+00C5 → Å (often same look)
All numeric forms produce the same glyph: Å. Prefer typing Å in UTF-8 when you can; use entities for CSS content, generated markup, or when encoding must be explicit.
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Direct character
Å
HTML text (UTF-8)
Hex entity
Å
HTML markup
Decimal entity
Å
HTML markup
CSS escape
\212B
Stylesheet content
Named entity (U+212B)
—
Not defined in HTML5
Å related (U+00C5)
Å
Latin A with ring — often same glyph
When to Use Which
Situation
Use
Scientific unit (ångström)
Type Å or Å
Nordic letter / name spelling
Å (U+00C5)
Need an entity in HTML source
Å or Å
Generated text via ::before / ::after
content: "\212B"
Looking for Å for U+212B
That name is U+00C5 — use numeric form for U+212B
See it
Live Preview
Angstrom sign in common study contexts.
Inline scienceλ = 5500 Å
Large glyphÅ
vs. Å (U+00C5)Unit: Å (U+212B) | Letter: Å (U+00C5)
Monospacebond ≈ 1.5 Å
With entitiesHex: Å | Decimal: Å
Code
Complete HTML Example
One page that shows Å with hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.
Hex + Decimal + CSS + Typed
Four ways to produce Å in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Angstrom Sign (Å) in HTML</title>
<style>
#point::after {
content: "\212B";
}
</style>
</head>
<body>
<p>Angstrom using Hex Code: Å</p>
<p>Angstrom using HTML Code: Å</p>
<p id="point">Angstrom using CSS Entity: </p>
<p>Typed directly: Å</p>
</body>
</html>
Angstrom using Hex Code: Å
Angstrom using HTML Code: Å
Angstrom using CSS Entity: Å
Typed directly: Å
How It Works
1. Hex:U+212B → Å in HTML. The browser turns it into Å.
2. Decimal: same code point as 8491 → Å. Same result as hex.
3. CSS: use \212B in content (not an HTML entity). #point::after appends that Å after the paragraph text.
4. Typed Å: best for normal UTF-8 text. All four lines show the same glyph.
Pitfalls & Tips
Common mistakes when working with the Angstrom sign (Å) entity.
Named?
No named entity for U+212B
Use Å or Å. Do not assume Å is this code point.
Å
Know U+00C5 vs U+212B
Å is Å (U+00C5). Same look often, different identity — pick one style per project.
CSS vs HTML
Do not mix escapes
\212B belongs in CSS. Å / Å belong in HTML.
Fonts
Letterlike coverage varies
Some fonts map Å to the Å glyph. Prefer science-friendly fonts for unit labels.
Unit
Add context
Pair the symbol with a number and meaning (e.g. 1.54 Å) so readers know it is a length unit.
Semicolon
End references
Always finish with ; — write Å, not Å.
Compatibility
Browser Support
Angstrom sign (U+212B) and its numeric entity forms (Å, Å, CSS \\212B) are supported in all mainstream browsers. Glyph availability depends on font support for Letterlike Symbols.
✓ Universal support
Angstrom Sign (Å)
Type Å, or encode with hex, decimal, or CSS escape — same glyph everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+212B / entitiesFull support
Bottom line: Use a typed Å for normal UTF-8 text. Prefer Å or Å in HTML when encoding must be explicit, and \\212B only inside CSS content.
Remember
Key Takeaways
Unicode: Angstrom sign is U+212B (decimal 8491).
HTML: use Å or Å (no named entity for U+212B).
CSS: use \212B inside content for generated text.
Related:Å is Å (U+00C5), not U+212B.
One line:U+212B → type Å, or encode as Å / Å / CSS \212B.
Frequently Asked Questions
Use Å (hex), Å (decimal), or the CSS escape \212B in the content property. All render Å. You can also paste Å directly if your file is UTF-8. There is no named HTML entity for U+212B.
U+212B (hex 212B, decimal 8491). Unicode names it Angstrom sign. It belongs to the Letterlike Symbols block and denotes the ångström unit of length.
No. Use numeric references like Å or Å. The named entity Å (and Å) maps to Latin capital A with ring above (U+00C5), which usually looks the same but is a different code point.
Unicode treats them as canonically equivalent. Prefer U+212B (or its numeric entities) when you want the letterlike unit symbol; U+00C5 / Å is fine for Nordic text and often for the unit in practice.
HTML entities (Å or Å) go in markup. The CSS escape \212B is used in stylesheets (usually in the content property of ::before/::after). Both render Å.
In scientific and technical text for wavelengths, crystal lattices, and atomic-scale lengths labeled in ångströms — when a Unicode symbol is clearer than writing Angstrom in words.
🤔
Did you know?
Angstrom sign is Unicode U+212B (decimal 8491) in the Letterlike Symbols block. It denotes the ångström length unit (0.1 nm). HTML5 has no named entity for U+212B — use Å or Å. Latin capital A with ring (U+00C5 / Å) often looks the same and is canonically equivalent under Unicode normalization.
