Greek Small Letter Rho HTML entity ρ

ρ is the HTML entity for Greek Small Letter Rho ρ (U+03C1). Copy the decimal ρ and hex ρ codes plus CSS, JavaScript, Python and URL escapes.

Entity: ρ
Code point: U+03C1
Unicode name: GREEK SMALL LETTER RHO
Block: Greek and Coptic
Category: Lowercase letter (Ll)
Since: Unicode 1.1
Defined in: HTML 4.01 and HTML5

Codes to copy

HTML named	`ρ`Works in HTML; in XML only & < > " ' are predefined.
HTML decimal	`ρ`Works in HTML and XML.
HTML hex	`ρ`Works in HTML and XML.
CSS	`content: "\3C1";`In a stylesheet, for ::before and ::after.
JavaScript	`"\u03C1"`Also valid in JSON.
Python	`"\u03c1"`Python 3 string literal.
Python by name	`"\N{GREEK SMALL LETTER RHO}"`Readable alternative using the Unicode name.
URL	`%CF%81`Percent-encoded UTF-8 bytes, for a path or query value.
UTF-8 bytes	`CF 81`2 bytes.
UTF-16	`03C1`1 code unit, which is what JavaScript length counts.

When to use it

ρ writes U+03C1 (Greek Small Letter Rho), a small letter from the Unicode Greek and Coptic block, encoded since Unicode 1.1. In mathematics, single Greek letters are usually set in italic; MathML or a maths font handles that automatically.

The name dates from HTML 4, so it works in every browser and in old email clients.

More greek letters

All greek letters · 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).