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Integral HTML entity ∫
∫ is the HTML entity for Integral ∫ (U+222B). Copy the decimal ∫ and hex ∫ codes plus CSS, JavaScript, Python and URL escapes.
- Entity
∫- Also written
∫- Code point
- U+222B
- Unicode name
- INTEGRAL
- Block
- Mathematical Operators
- Category
- Math symbol (Sm)
- Since
- Unicode 1.1
- Defined in
- HTML 4.01 and HTML5
Codes to copy
| HTML named | ∫Works in HTML; in XML only & < > " ' are predefined. | |
|---|---|---|
| HTML decimal | ∫Works in HTML and XML. | |
| HTML hex | ∫Works in HTML and XML. | |
| CSS | content: "\222B";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u222B"Also valid in JSON. | |
| Python | "\u222b"Python 3 string literal. | |
| Python by name | "\N{INTEGRAL}"Readable alternative using the Unicode name. | |
| URL | %E2%88%ABPercent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | E2 88 AB3 bytes. | |
| UTF-16 | 222B1 code unit, which is what JavaScript length counts. |
When to use it
∫ writes U+222B (Integral), a maths symbol from the Unicode Mathematical Operators block, encoded since Unicode 1.1. For more than a symbol or two, MathML, supported in all major browsers since 2023, gives proper maths spacing and layout.
The name dates from HTML 4, so it works in every browser and in old email clients.
More maths operators
∭Triple Integral∩Intersection∮Contour Integral∨Logical or∯Surface Integral∧Logical and∰Volume Integral∦Not Parallel to
All maths operators · Every HTML entity · Encode or decode text
Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).