Windows
2 options- In Word / Outlook: type 222C then press Alt + X.
- Anywhere: press Win + . to open the emoji & symbol picker, then search.
Double Integral Symbol
A symbol from the Math Symbols collection. Click the symbol or the button below to copy.
- Symbol
- ∬
- Unicode
- U+222C
- HTML entity
- ∬
- Category
- Math Symbols
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84 of 96 in the math symbols collection
About the double integral symbol
The symbol is read aloud as "double integral" and represents integration over a two-dimensional area. In mathematics, it is used to compute the volume under a surface, the total accumulated value over a region in the plane, or physical quantities such as flux through a surface. It appears in multivariable calculus, physics, and engineering contexts where functions of two variables are integrated over a defined domain.
How to type Double Integral
Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.
macOS
2 options- Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 222C.
- Or: Control + Command + Space opens the Character Viewer — search by name.
Linux
1 step- Press Ctrl + Shift + U, type 222C, then press Enter or Space.
Copy in every format
Every form of this character — for HTML, CSS, JavaScript, URLs and more. Click any value to copy.
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Other math symbols you can copy and paste — explore similar Unicode characters from the same family.
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- =Equals SignCopy the equals sign symbol→
- ≠Not Equal ToCopy the not equal to symbol→
- ≈Almost Equal ToCopy the almost equal to symbol→
- ≡Identical ToCopy the identical to symbol→
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- ≥Greater-Than Or Equal ToCopy the greater-than or equal to symbol→
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