What is the Alt code for the squared symbol?

On Windows, hold Alt and type 0178 on the numeric keypad (Alt+0178). In some older DOS-based programs, Alt+253 also produces the symbol.

How do I type the squared symbol on a Mac?

Enable the Unicode Hex Input keyboard in System Settings, then hold Option and type 00B2. You can also open Character Viewer (Control+Command+Space) and search for "superscript two".

What is the HTML entity for the squared symbol?

Use ² or the numeric entity ². Both render as ².

What is the Unicode code point for the squared symbol?

The squared sign (superscript two) is U+00B2, in the same Latin-1 Supplement block as ¹ (superscript one) and ³ (superscript three).

How do I type the squared symbol on Linux?

Press Ctrl+Shift+U, type 00b2, then press Enter or Space. This works in GTK and many other Linux text fields.

Is ² the same as typing "^2" or using CSS to style a superscript?

No. "^2" is plain text and CSS superscript styling depends on the surrounding markup. ² is a real Unicode character, so it displays correctly wherever text is copied, including plain-text files and search results.

Squared Symbol

Name: Squared Symbol
Availability: InStock
Author: Nham Vu

Copy the squared symbol (²) and find the exact Alt code, Unicode value, HTML entity, or keyboard shortcut for your platform.

Squared Symbol

Click the symbol to copy it

Formats

Character ²

Unicode U+00B2

HTML entity ²

HTML decimal ²

CSS escape \00B2

JS / JSON escape ²

Click any row to copy that exact string.

Keyboard Shortcuts

System	Shortcut	Notes
Windows		Hold Alt, type 0178 on the numeric keypad.
Windows (legacy)		Works in some older DOS-based programs.
Mac		Requires the Unicode Hex Input keyboard to be enabled.
Linux (GTK)		Type the hex code, then press Enter or Space.
Microsoft Word		Type 00B2 then press Alt+X to convert it.

Squared unit builder

Type a number and pick a unit to build a ready-to-paste squared value.

25²

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Summary

Copy the squared symbol (²) and find the exact Alt code, Unicode value, HTML entity, or keyboard shortcut for your platform.

How it works

Click the large squared symbol to copy it to your clipboard.
Or click any format in the list (Unicode, HTML entity, CSS escape) to copy that exact string.
Use the shortcut table to type the symbol directly from your keyboard on Windows, Mac, or Linux.
Use the unit builder to combine a number with a squared unit like m² or ft², then copy the result.
Paste the symbol anywhere: documents, spreadsheets, code, or chat.

Use cases

Write area units like m², cm², km², or ft² in a document or spreadsheet.
Show squared units in scientific or engineering notation.
Insert the squared symbol into code, CSS content, or HTML without breaking encoding.
Learn the Alt code or keyboard shortcut so you never need to look it up again.
Copy the correct HTML entity for a web page instead of pasting a raw Unicode character.
Build a ready-to-paste squared unit like "25 m²" with the built-in unit picker.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu