AltKeyCodes

Greek Small Letter Sigma Alt Code and Symbol

The Alt code for Greek Small Letter Sigma is 229. Hold Alt, type 229 on the numeric keypad, then release Alt. Greek Small Letter Sigma also has the Unicode codepoint U+03C3, so you can type it with Alt+963 on Windows, search for U+03C3 in macOS's Character Viewer, use σ in HTML, or \03C3 in CSS. If your keyboard has no numeric keypad, use the Character Viewer, the HTML entity, or copy the character directly — the Alt key method requires a physical numpad. Copy the Greek Small Letter Sigma character from this page when you need it in a form, chat message or document that does not accept Alt codes. HTML also defines the named entity σ for Greek Small Letter Sigma, but the numeric form σ is safer when compatibility is uncertain.

Codes for this symbol

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

Not available for this symbol: macOS Option shortcut.

How to type greek small letter sigma on Windows

  1. Turn Num Lock on so the numeric keypad is active.
  2. Hold the left Alt key.
  3. Type 2 2 9 on the numeric keypad.
  4. Release Alt. The Greek Small Letter Sigma character (σ) appears.

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

How to type greek small letter sigma on macOS

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

How to use greek small letter sigma in code

  • HTML: or , also
  • CSS: content:"\03C3"; ()
  • Python: \u03C3 or chr(0x3C3)
  • JavaScript: \u03C3 or String.fromCodePoint(0x3C3)
  • JSON: "\u03C3"
  • LaTeX: $\sigma$ (math mode)
Square RootAlt+251
InfinityAlt+236
Greek Capital Letter OmegaAlt+234
Greek Small Letter PiAlt+227
Greek Capital Letter SigmaAlt+228
Greek Small Letter AlphaAlt+224
N-ary SummationAlt+8721
Greek Capital Letter GammaAlt+226
Greek Capital Letter ThetaAlt+233
Greek Capital Letter PhiAlt+232
Greek Small Letter EpsilonAlt+238
Greek Capital Letter DeltaAlt+916
Greek Small Letter MuAlt+956
Greek Small Letter PhiAlt+237
Greek Capital Letter MuAlt+924
Greek Capital Letter PiAlt+928
Greek Small Letter LamdaAlt+955

Frequently asked questions

What is the Alt code for Greek Small Letter Sigma?

The legacy Alt code for Greek Small Letter Sigma is 229. Hold Alt, type 2 2 9 on the numeric keypad, then release Alt.

How do I type σ without a numpad?

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

Why does Alt+963 not work?

Alt+963 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 Greek Small Letter Sigma?

The Unicode codepoint for Greek Small Letter Sigma is U+03C3. You can use this value in HTML as σ, in CSS as \03C3, and in Word with Alt+X.

How do I type σ on a Mac?

Open the Character Viewer with ⌃⌘Space and search for the character name or U+03C3, then click it.

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