Startseite » Windows EN » Sigma Alt Code – How to Type Σ on Windows, Mac, and Linux

Sigma Alt Code – How to Type Σ on Windows, Mac, and Linux

The Sigma (Σ, σ) symbol is widely used in mathematics, physics, and statistics, representing summation in formulas. Instead of copying and pasting, you can insert the Sigma symbol directly using Alt codes and keyboard shortcuts on Windows, Mac, and Linux.

This guide will teach you the quickest ways to type Σ on different operating systems.

Sigma Alt Code on Windows

Windows users can type Σ (uppercase) or σ (lowercase) using Alt codes with the numeric keypad.

Windows Alt Codes for Σ and σ

  • Uppercase Sigma (Σ) → Alt + 228
  • Lowercase Sigma (σ) → Alt + 229
  • Final Sigma (ς) → Alt + 962

How to Use the Sigma Alt Code on Windows

  1. Turn on Num Lock if it’s not already enabled.
  2. Hold down the Alt key.
  3. Type 228 on the numeric keypad for Σ or 229 for σ.
  4. Release the Alt key, and the Sigma symbol appears.

📌 Note: The Alt code method requires a numeric keypad. If your laptop lacks one, try the Character Map or copy-paste the symbol.

How to Type Σ on Mac

Mac users can insert Σ (Sigma) using the Emoji & Symbols Viewer or Unicode input.

Mac Shortcut for Σ

  1. Press Cmd + Control + Space to open the Character Viewer.
  2. Search for Sigma and click Σ to insert it.

✅ Alternative: Use Unicode input by holding Option and typing 03A3, then pressing Space.

How to Type Σ on Ubuntu/Linux

Linux users can insert the Σ symbol using Unicode or the Compose Key.

Unicode Input for Σ on Ubuntu/Linux

  1. Press Ctrl + Shift + U.
  2. Type 03A3 (Unicode for Σ).
  3. Press Enter, and the Σ symbol appears.

Compose Key Method (Ubuntu/Linux)

  1. Enable the Compose Key in keyboard settings.
  2. Press Compose, then type S and G.
  3. The Σ symbol appears.

Alternative Ways to Insert Σ

If keyboard shortcuts don’t work, try these methods:

Windows Character Map

  1. Open Character Map (Win + R → Type charmap → Press Enter).
  2. Search for Sigma and select Σ.
  3. Click Copy, then paste it into your document.

Mac Emoji & Symbols Viewer

  1. Press Cmd + Control + Space to open Character Viewer.
  2. Search for Sigma and select Σ to insert.

Copy and Paste Method

If you’re in a hurry, simply copy this symbol: Σ and paste it where needed.

FAQs About the Sigma Symbol (Σ) and Alt Codes

What is the Alt code for the Sigma symbol?
The Alt code for Σ is Alt + 228, and for σ is Alt + 229 on Windows.

How do I type Sigma on a laptop without a numeric keypad?
Use the Character Map (Windows), Emoji & Symbols Viewer (Mac), or copy and paste the symbol.

How do I insert Σ in Microsoft Word?
Use Alt + 228 on Windows or Character Viewer (Cmd + Control + Space) on Mac. You can also find it under Insert → Symbol in Word.

Does the Σ symbol work in web browsers and social media?
Yes! The Σ Sigma symbol works in all web browsers, social media posts, and messaging apps.

Complete List of Windows Keyboard Shortcuts

If you need help for Windows, you can find a whole list of all keyboard shortcuts here.

https://keyboard-shortcuts.org/

Advertisment