Sigma Symbol Σ — Copy & Paste
Sigma (Σ) is the eighteenth Greek letter, used in statistics to denote standard deviation (lowercase σ) and as the summation operator (uppercase Σ). It is also used in the sigma notation for series in mathematics and in fraternity/sorority names.
How to Type Sigma Symbol
No standard shortcut — copy from this pageNo standard shortcut — copy from this pageNot on standard keyboard — copy from this pageΣOn Android, long-press common keys or use the special characters keyboard to find Σ. Or just copy it from this page — it works everywhere.
Unicode Details
U+03A393103A3ΣWhere Is Sigma Symbol Used?
- ✦Statistics (standard deviation)
- ✦Summation notation
- ✦Six sigma quality
- ✦Fraternity names
Other Names for Σ
Frequently Asked Questions
How do I type the sigma symbol on a Mac?▼
There is no built-in Mac keyboard shortcut for Σ. The easiest method is to copy it from this page with the button above.
Does Σ work on Instagram, Discord, and TikTok?▼
Yes — Σ is a standard Unicode character (U+03A3) that renders on every platform and device. Copy it from this page and paste it into any text field on Instagram, Discord, TikTok, Twitter/X, WhatsApp, or elsewhere.
What is the HTML code for Σ?▼
The HTML entity for Σ is Σ. You can also use the numeric reference Σ or the hex reference Σ.