∮

Contour Integral Symbol (∮)

Copy and paste the contour integral ∮ with one click

Unicode Character

∮

Unicode Hex

U+222E

HTML Entity

∮

Decimal Code

8750

About the Contour Integral Symbol

Last reviewed on October 31, 2026

∮ is an integral sign with a circle through it, for an integral around a closed path. Complex analysis and electromagnetism use it, as in Ampère's law or the residue theorem. The loop shows the path comes back to its start.

Its official Unicode name is Contour Integral. Browse the Mathematical Symbols page for related characters.

How to Type Contour Integral on a Keyboard

Windows: Type 222E then press Alt+X in Word; in other apps, copy ∮ from this page and paste it. It has no classic Alt code

Mac: Press Ctrl+Cmd+Space to open the Character Viewer, then search for the symbol by name

Microsoft Word: Type 222E then press Alt+X

Phone & tablet: Copying ∮ from this page is fastest — see our mobile typing guide

Contour Integral Code for HTML, CSS & JavaScript

HTML: ∮

CSS: content: '\222E';

JavaScript: '\u222E'

Unicode: U+222E

Frequently Asked Questions

How do I type contour integral ∮ on Windows?

Type 222E then press Alt+X in Word; in other apps, copy ∮ from this page and paste it. It has no classic Alt code. You can also copy ∮ straight from this page.

How do I type ∮ on a Mac?

Press Ctrl+Cmd+Space to open the Character Viewer, then search for the symbol by name.

What is the Unicode and HTML code for contour integral?

It is Unicode code point U+222E, named Contour Integral. In HTML, use ∮.