AltKeyCodes

Superscript Zero Symbol

There is no legacy Windows Alt code for Superscript Zero because it is not in either the OEM code page 437 or Windows-1252 tables. The Unicode codepoint is U+2070, which you can use as ⁰ in HTML, \2070 in CSS, or type with Alt+8304 on Windows (BMP only). If your keyboard has no numeric keypad, use the Character Viewer, the HTML entity, or copy the character directly. Superscript Zero is outside both legacy code pages, which is why U+2070 is the identifier that works across Word, HTML, CSS, Python and JavaScript. Superscript Zero has no named HTML entity, so use the numeric escape ⁰ or the hex escape ⁰.

Codes for this symbol

Copy any value by clicking it.
MethodValue
Alt + decimal
Alt + X hex
HTML decimal
HTML hex
CSS escape
Python escape
JavaScript escape
UTF-8 bytes
Unicode codepoint
Unicode block
Unicode category

Not available for this symbol: legacy Windows Alt code, macOS Option shortcut, named HTML entity.

How to type superscript zero on Windows

  1. Turn Num Lock on so the numeric keypad is active.
  2. Hold the left Alt key.
  3. Type 8 3 0 4 on the numeric keypad for the decimal codepoint 8304.
  4. Release Alt. The Superscript Zero character (⁰) appears.

If your keyboard has no numeric keypad, see how to type symbols without a numpad.

How to type superscript zero on macOS

There is no direct Option shortcut for Superscript Zero. Open the Character Viewer with ⌃⌘Space, search for "Superscript Zero" and click the character to insert it.

How to use superscript zero in code

  • HTML: or
  • CSS: content:"\2070"; ()
  • Python: \u2070 or chr(0x2070)
  • JavaScript: \u2070 or String.fromCodePoint(0x2070)
  • JSON: "\u2070"
Degree SignAlt+248
Superscript TwoAlt+253
Superscript ThreeAlt+0179
Superscript OneAlt+0185
Subscript TwoAlt+8322

Frequently asked questions

Is there an Alt code for ⁰?

No legacy Alt code exists for Superscript Zero because it is not in code page 437 or Windows-1252. Use the Unicode codepoint U+2070 in HTML, CSS or the Character Viewer instead.

How do I type ⁰ without a numpad?

Use the Windows Character Viewer (Win+.), the macOS Character Viewer (⌃⌘Space), an HTML entity such as ⁰, or copy the character directly from this page.

Why does Alt+8304 not work?

Alt+8304 only works on a keyboard with a physical numeric keypad. It also requires the application to accept the numeric-keypad input path. Laptops without a numpad need an alternative method.

What is the Unicode for Superscript Zero?

The Unicode codepoint for Superscript Zero is U+2070. You can use this value in HTML as ⁰, in CSS as \2070, and in Word with Alt+X.

How do I type ⁰ on a Mac?

Open the Character Viewer with ⌃⌘Space and search for the character name or U+2070, then click it.

Back to Superscript and Subscript