Greek Letters

Capital Alpha Α

U+0391 Added in Unicode 1.1 (1993)

Capital Alpha is the first letter of the Greek alphabet, used in math, physics, and engineering notation.

Alt code Alt+913
Codes
Unicode
Unicode name
Decimal
Windows Alt code
HTML entity
HTML decimal
HTML hex
Encodings & code escapes +
UTF-8 (hex bytes)
UTF-16 (hex units)
UTF-32
URL encoded
CSS content
JavaScript / TypeScript
JSON, Java, C#, C/C++
Python
Go
Rust, Swift, PHP, Ruby
Perl

Click any value to copy it. All escapes refer to the same code point U+0391.

How to type Α on Windows

The fastest method on a full-size keyboard is the Alt code Alt+913.

  1. Make sure Num Lock is on.
  2. Hold down the Alt key.
  3. Type 913 on the numeric keypad (the number row will not work).
  4. Release Alt. The capital alpha symbol Α appears.

Note: Alt+913 is a Unicode decimal code, not a classic code-page Alt code. It works in Microsoft Word, WordPad and some other apps, but not in Notepad or most browsers. In those apps, copy the symbol from this page instead.

No numeric keypad?

Press Win+. to open the emoji panel, choose the Symbols tab (Ω) and search for "capital alpha". Or open Character Map from the Start menu, find Α, click Select, then Copy.

How to type Α on a Mac

There is no direct keyboard shortcut for Α on a Mac.

For any symbol, the Character Viewer works: press Control+⌘+Space, type "capital alpha" in the search box and double-click the result. It will be remembered under Frequently Used.

How to type Α on iPhone and iPad

The iOS keyboard does not include Α, so the reliable way is to copy it from this page, then press and hold in any text field and tap Paste.

If you use it often, create a shortcut: open Settings → General → Keyboard → Text Replacement, paste Α in the Phrase field and type a short code such as ;capital in the Shortcut field. Typing that code will then insert Α anywhere.

How to type Α on Android

Copy the symbol from this page, then long-press in a text field and choose Paste. Gboard also keeps a clipboard history: tap the clipboard icon on the toolbar to paste it again later.

For a permanent shortcut, open Gboard settings → Dictionary → Personal dictionary, add Α as the word and a short code as the shortcut.

How to type Α in Microsoft Word

  1. Type the Unicode hex code 0391 where you want the symbol.
  2. Press Alt+X. Word converts the code into Α.

This works on Windows in Word, Outlook and OneNote and needs no numeric keypad. You can also go to Insert → Symbol → More Symbols, set the font to a Unicode font and type 0391 in the Character code box. In Excel, the formula =UNICHAR(913) returns the symbol.

How to type Α in Google Docs

Open Insert → Special characters, then either search for "capital alpha" or draw the symbol in the sketch box. Click the result to insert it. In Google Sheets, use =CHAR(913).

Α in HTML, CSS and code

FormatCode
HTML entityΑ
HTML decimalΑ
HTML hexΑ
CSS content"\0391"
JavaScript"\u0391"
Python"\u0391"
URL encoded%CE%91

Because Α is a standard Unicode character (U+0391), you can also paste it directly into any UTF-8 file. The escaped forms above are only needed when the file encoding is uncertain or the symbol must be entered on a keyboard without it.

Where the capital alpha symbol is used

It appears in equations to denote angles or coefficients, such as "Α = 30°", and in physics for significant wavelength or particle names like "alpha particle". It looks identical to the Latin capital letter A, so context determines which one is meant.

Frequently asked questions

What does Alpha mean in Greek? +

Alpha is simply the name of the first letter in the Greek alphabet, corresponding to the sound "a".

Is capital Alpha the same as the letter A? +

Visually yes, but they are different characters in Unicode: Greek Alpha (U+0391) versus Latin A (U+0041), used in different alphabets.

What is the Alt code for the capital alpha symbol? +

The Alt code for Α is Alt+913. Hold Alt, type 913 on the numeric keypad, then release Alt. This is a Unicode code, so it works in Word and WordPad but not in every app; in other apps paste the symbol instead.

How do I type Α on a Mac? +

There is no dedicated Mac shortcut for Α. Open the Character Viewer with Control + Command + Space, search for "capital alpha", and double-click it. Or copy it from this page.

How do I type the capital alpha symbol on iPhone or Android? +

Phone keyboards do not include Α by default. Copy it from this page and paste it, or add it as a text replacement shortcut in Settings so you can type it with a short abbreviation.

What is the HTML code for Α? +

Use Α in HTML. The numeric form Α works too. In CSS use content: "\0391" and in JavaScript use "\u0391".

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