Copy it, then paste with Ctrl + V (Cmd + V on Mac).
Quick answer
| Method | How |
|---|---|
| Copy and paste | Use the copy button above |
| Windows | Win + . (symbol panel) |
| Mac | Option + W |
| Microsoft Word | Type 2211, then press Alt + X |
| Chromebook and Linux | Ctrl + Shift + U, type 2211, press Enter |
| HTML | ∑ or ∑ |
| CSS | \2211 |
| JavaScript | \u2211 |
| Unicode | U+2211 (N-Ary Summation) |
How to type the Summation Symbol on Windows
There is no classic Alt code for this character. Press Win + . (period) to open the emoji and symbol panel, choose the Symbols tab and find it, or copy it from this page.
No numeric keypad? On a laptop, use Win + . or open Character Map (search for charmap in Start).
In Microsoft Word, type 2211 and then press Alt + X to turn the code into ∑.
How to type the Summation Symbol on a Mac
Press Option + W.
On a Chromebook or Linux
Press Ctrl + Shift + U, type 2211, then press Enter or Space.
On iPhone and Android
Switch to the symbols keyboard (123 then #+= on iPhone, ?123 then =\< on Android). If it is not there, copy it from this page.
In Google Docs
Go to Insert > Special characters and search for "summation symbol".
Don't confuse it with
Σ (Greek capital sigma).
About this character
The n-ary summation sign used in math. On a Mac, Option + W types this character.
Related characters
Frequently asked questions
What is the Alt code for ∑?
There is no classic Alt code for ∑. Use Win + . to open the symbol panel, or type 2211 then Alt + X in Word.
How do I type ∑ on a Mac?
Press Option + W.
What is the HTML code for ∑?
Use ∑ or ∑ in HTML.