Angstrom Symbol (Å): How to Type, Insert in Word, Alt Code

The angstrom symbol (Å)—also written as the Ångström sign—is a vital scientific notation representing a unit of length equal to 10⁻¹⁰ meters (one ten-billionth of a meter). Named after Swedish physicist Anders Jonas Ångström, this symbol is standard in chemistry, physics, materials science, and crystallography to measure atomic radii, chemical bonds, and light wavelengths.

Whether you need to type the angstrom symbol in a Microsoft Word document, a PowerPoint presentation, a LaTeX manuscript, or an HTML web page, this comprehensive guide covers the fastest shortcuts for every platform.

Quick Reference: Angstrom Symbol Shortcuts

How to Type the Angstrom Symbol on Windows & Mac

If you need to quickly type the symbol outside of a specialized word processor, use these universal operating system shortcuts:

• Windows (Alt Code): Ensure Num Lock is turned on. Hold down the Alt key and type 0197 on the numeric keypad (Alt + 0197).
• macOS (Mac Shortcut): Press Option + Shift + A simultaneously. This works across all native Mac applications, including Pages, Keynote, and Safari.
• Mobile Devices (iPhone & Android): Open your virtual keyboard, go to the alphabetical layout, and long-press the capital letter A. A pop-up menu will display accented variations; slide your finger to select Å.

How to Insert the Angstrom Symbol in Microsoft Office

Microsoft Office suites offer multiple native workflows for inserting the letter A with a ring above it.

1. In Microsoft Word (Unicode Shortcut)

The fastest way to add the symbol in Word without using a mouse is the Alt+X transformation:

1. Type 00C5 exactly where you want the character.
2. Immediately press Alt + X.
3. The alphanumeric string will instantly convert into Å.

(Note: For the lowercase angstrom symbol å, type 00E5 and press Alt + X).

2. Standard Keyboard Shortcut (Word Only)

1. Press Ctrl + Shift + @ simultaneously.
2. Release the keys.
3. Press the capital A key (or lowercase a for å).

3. The Ribbon Menu (Word, Excel, & PowerPoint)

If you prefer a visual interface, you can use the built-in system character catalog:

1. Go to the Insert tab on the top ribbon menu.
2. Click Symbol on the far-right side, then select More Symbols.
3. Set the font to (normal text) and scroll until you find the Å character.
4. Click Insert and close the dialogue box.

How to Insert the Angstrom Symbol in LaTeX

In mathematical and scientific typesetting systems like LaTeX, the angstrom symbol is natively supported through macro commands:

• Text & Math Mode: Use the standard command \AA. To ensure a proper structural gap between a numeric measurement and the unit, add a backslash space (\ ).
  • Input Example:12\ \AA
  • Output Render: 12 Å
• Strict Text Mode: If you are working outside an equation block and want to guarantee font uniformity, use the command \text{\AA} within the amsmath package.

How to Add the Ångström Sign in (HTML & CSS)

You can insert the angstrom symbol in HTML using direct characters, HTML entities, or Unicode codes.

• Direct Character:Å
• HTML Named Entity:Å
• HTML Decimal Code:Å
• HTML Hex Code:Å
• CSS Escape Code:\00C5

Related: Degree symbol, Plus-minus symbol, Sigma symbol.