summation (∑)
Need to type summation (∑)? The fastest way is the copy button below. If you'd rather use a keyboard shortcut, the cards underneath cover Windows, macOS, Linux, HTML and Unicode.
- Unicode
- U+2211
- HTML
- ∑
Windows
No standard shortcut — use the copy button above.
Mac
Option + w
Linux
Ctrl + Shift + u, then 2211
HTML / web
∑
∑
Unicode
U+2211
Frequently asked questions
What is the fastest way to type ∑?
Click the Copy button on this page — that copies ∑ (summation (∑)) to your clipboard, ready to paste into any app.
What is the Unicode codepoint for ∑?
∑ has Unicode codepoint U+2211. Its decimal HTML entity is ∑.
Does ∑ work in every font?
Most modern system fonts include ∑. If a specific font lacks the glyph, switch to a Unicode-complete fallback like Noto, Arial Unicode MS, or DejaVu.
Why doesn't the Alt code work for ∑?
Windows Alt codes only work with the numeric keypad and Num Lock enabled. On laptops without a numeric keypad, use the Character Map app or the copy button above.