Rho Symbol Copy and Paste

Copy ρ, the Greek letter rho, or take the capital Ρ, the tailed ϱ or a math style.

ρGreek small letter rhoU+03C1Ready to copy

41 rho characters and strings. Tap any value to copy it.

41 rho characters and strings. A character and its name both copy the character. A code copies the code.
Character	Name	Code point	HTML	LaTeX
	U+03C1. The Greek alphabet's seventeenth letter, which writes the sound r. It stands for density and for resistivity. It has no Alt code. ρ in HTML and \rho in LaTeX.
	U+03A1. The capital. It is drawn like a Latin P and is a different character. Ρ in HTML. It has no Alt code and no LaTeX macro of its own.
	U+03F1. Tailed rho, with the tail curled under, which Unicode's names list calls a technical symbol. ϱ in HTML and \varrho in LaTeX.
	U+03FC. Rho, its tail crossed by a stroke. It marks abbreviations that hold a rho, as in γϼ. Added in Unicode 4.1 (2005).
	U+1D70C. Small rho in italic, the slanted letter of a printed formula: U+03C1 in a math font, by its Unicode definition.
	U+1D71A. Tailed rho in italic, the slanted letter of a printed formula: U+03F1 in a math font, by its Unicode definition.
	U+1FE5. Small rho with rough breathing, the usual way old Greek spelling writes a rho that starts a word.
	U+1D68. A lowered small rho: a subscript U+03C1 by its Unicode definition. Added in Unicode 4.0 (2003).
	Made of U+03C1 and U+2070. Rho with a raised zero: the rho meson with no charge, a particle of physics.
	Made of U+03C1, U+0028, U+0041 and U+0029. Rho, then A in parentheses: the spectral radius of a matrix A.
	U+1D6D2. Small rho in upright bold: U+03C1 in a math font, by its Unicode definition.
	U+1D746. Small rho in bold italic: U+03C1 in a math font, by its Unicode definition.
	U+1D780. Small rho in bold with no serifs: U+03C1 in a math font, by its Unicode definition.
	U+1D7BA. Small rho in bold italic with no serifs: U+03C1 in a math font, by its Unicode definition.
	U+1D6E0. Tailed rho in upright bold: U+03F1 in a math font, by its Unicode definition.
	U+1D754. Tailed rho in bold italic: U+03F1 in a math font, by its Unicode definition.
	U+1D78E. Tailed rho in bold with no serifs: U+03F1 in a math font, by its Unicode definition.
	U+1D7C8. Tailed rho in bold italic with no serifs: U+03F1 in a math font, by its Unicode definition.
	U+1D6B8. Capital rho in upright bold: U+03A1 in a math font, by its Unicode definition.
	U+1D6F2. Capital rho in italic, the slanted letter of a printed formula: U+03A1 in a math font, by its Unicode definition.
	U+1D72C. Capital rho in bold italic: U+03A1 in a math font, by its Unicode definition.
	U+1D766. Capital rho in bold with no serifs: U+03A1 in a math font, by its Unicode definition.
	U+1D7A0. Capital rho in bold italic with no serifs: U+03A1 in a math font, by its Unicode definition.
	U+1FE4. Small rho with smooth breathing, a rare spelling. Old double rho took it on the first of the pair.
	U+1FEC. Capital rho with rough breathing, for a name or a sentence that starts with rho in old Greek spelling.
	U+1D29. A small capital rho of phonetic writing, which stands for a voiceless uvular trill. Added in Unicode 4.0 (2003).
	Made of U+03C1 and U+207A. Rho with a raised plus sign: the rho meson with a positive charge.
	Made of U+03C1 and U+207B. Rho with a raised minus sign: the rho meson with a negative charge.
	Made of U+03B3 and U+03FC. Gamma and the stroked rho: an old abbreviation of the Greek word gramma as a unit of measurement.
	Made of U+1FE4 and U+1FE5. Two rhos, the first with smooth and the second with rough breathing: the way a double rho was written until the 19th century.
	Made of U+03C1 and U+03C1. Two plain rhos, the spelling that replaced the pair with breathing marks.
	Made of U+03C1 and U+03BF. Rho and omicron: one of the two ways modern Greek writes the name of the letter.
	Made of U+03C1 and U+03C9. Rho and omega: the other modern spelling of the letter's name.
	Made of U+1FE5 and U+1FF6. Rho with rough breathing and omega with a circumflex: the name of the letter in old spelling.
	U+2CA2. The Coptic letter in rho's place, named ro in Unicode. The Coptic alphabet descends from the Greek one and got code points of its own in Unicode 4.1 (2005).
	U+2CA3. Small ro, the lowercase of the Coptic rho.
	U+0420. The Cyrillic letter er, which arose from rho and writes the sound r. It too is drawn like a Latin P.
	U+0440. Small er, the lowercase of the Cyrillic letter.
	U+2374. The rho of the APL programming language, where it means reshape.
	U+0050. The Latin capital P, on every keyboard. Capital rho has the same shape and another code point, U+03A1.
	U+0070. The Latin small p, on every keyboard. Biology writes one protein with the tailed rho so it is not read as this letter.

Next step The Greek letters that do have Alt codes π next, formulas included

How it works

ρ is the rho symbol: Greek small letter rho, U+03C1, the seventeenth letter of the Greek alphabet. The rows add the capital Ρ, the tailed ϱ, the stroked ϼ, rho with breathing marks, and math styles such as 𝜌.

Read the full guide

Rho is the Greek letter for r

Rho writes the sound r, although its capital Ρ is drawn like a Latin P. The two are different characters: Ρ is U+03A1 and P is U+0050, so a search for one misses the other. The Latin R and the Cyrillic Р both arose from rho.

ρ, ϱ and ϼ are three code points

ϱ, U+03F1, is the tailed form, which Unicode's names list calls a technical symbol. It is ϱ in HTML and \varrho in LaTeX. ϼ, U+03FC, has a stroke through its tail and marks abbreviations.

Old Greek spelling puts a breathing mark on a rho that starts a word: ῥ is the usual form.
As a Greek numeral rho stands for 100.

Questions and answers

What is the Alt code for rho?

Rho has no Alt code. The old PC character set behind the three-digit Alt codes holds a dozen Greek letters, and neither ρ nor Ρ is among them. Copy the letter, or write ρ in HTML and \rho in LaTeX.

What Greek letter stands for density?

Density is written with the small rho, ρ. The same letter stands for electrical resistivity, for a correlation coefficient in statistics and, in polar coordinates, for a length.

How do you say the Greek letter rho?

Rho is said like the word row, as in a row of seats, with the vowel of go. Modern Greek writes the name ρο or ρω.

All 41 rho characters and strings

Start here 10

Greek capital letter rho U+03A1. The capital. It is drawn like a Latin P and is a different character. Ρ in HTML. It has no Alt code and no LaTeX macro of its own.
Greek rho symbol U+03F1. Tailed rho, with the tail curled under, which Unicode's names list calls a technical symbol. ϱ in HTML and \varrho in LaTeX.
Greek rho with stroke symbol U+03FC. Rho, its tail crossed by a stroke. It marks abbreviations that hold a rho, as in γϼ. Added in Unicode 4.1 (2005).
Greek small letter rho U+03C1. The Greek alphabet's seventeenth letter, which writes the sound r. It stands for density and for resistivity. It has no Alt code. ρ in HTML and \rho in LaTeX.
Greek small letter rho with dasia U+1FE5. Small rho with rough breathing, the usual way old Greek spelling writes a rho that starts a word.
Greek subscript small letter rho U+1D68. A lowered small rho: a subscript U+03C1 by its Unicode definition. Added in Unicode 4.0 (2003).
Mathematical italic rho symbol U+1D71A. Tailed rho in italic, the slanted letter of a printed formula: U+03F1 in a math font, by its Unicode definition.
Mathematical italic small rho U+1D70C. Small rho in italic, the slanted letter of a printed formula: U+03C1 in a math font, by its Unicode definition.
Neutral rho meson Made of U+03C1 and U+2070. Rho with a raised zero: the rho meson with no charge, a particle of physics.
Spectral radius of A Made of U+03C1, U+0028, U+0041 and U+0029. Rho, then A in parentheses: the spectral radius of a matrix A.

Show all 41 rho characters and strings (31 more)

Small rho ρ 4

Mathematical bold italic small rho U+1D746. Small rho in bold italic: U+03C1 in a math font, by its Unicode definition.
Mathematical bold small rho U+1D6D2. Small rho in upright bold: U+03C1 in a math font, by its Unicode definition.
Mathematical sans-serif bold italic small rho U+1D7BA. Small rho in bold italic with no serifs: U+03C1 in a math font, by its Unicode definition.
Mathematical sans-serif bold small rho U+1D780. Small rho in bold with no serifs: U+03C1 in a math font, by its Unicode definition.

Tailed rho ϱ 4

Mathematical bold italic rho symbol U+1D754. Tailed rho in bold italic: U+03F1 in a math font, by its Unicode definition.
Mathematical bold rho symbol U+1D6E0. Tailed rho in upright bold: U+03F1 in a math font, by its Unicode definition.
Mathematical sans-serif bold italic rho symbol U+1D7C8. Tailed rho in bold italic with no serifs: U+03F1 in a math font, by its Unicode definition.
Mathematical sans-serif bold rho symbol U+1D78E. Tailed rho in bold with no serifs: U+03F1 in a math font, by its Unicode definition.

Capital rho Ρ 5

Mathematical bold capital rho U+1D6B8. Capital rho in upright bold: U+03A1 in a math font, by its Unicode definition.
Mathematical bold italic capital rho U+1D72C. Capital rho in bold italic: U+03A1 in a math font, by its Unicode definition.
Mathematical italic capital rho U+1D6F2. Capital rho in italic, the slanted letter of a printed formula: U+03A1 in a math font, by its Unicode definition.
Mathematical sans-serif bold capital rho U+1D766. Capital rho in bold with no serifs: U+03A1 in a math font, by its Unicode definition.
Mathematical sans-serif bold italic capital rho U+1D7A0. Capital rho in bold italic with no serifs: U+03A1 in a math font, by its Unicode definition.

Rho with a breathing mark 2

Greek capital letter rho with dasia U+1FEC. Capital rho with rough breathing, for a name or a sentence that starts with rho in old Greek spelling.
Greek small letter rho with psili U+1FE4. Small rho with smooth breathing, a rare spelling. Old double rho took it on the first of the pair.

Lowered and small capital rho 1

Greek letter small capital rho U+1D29. A small capital rho of phonetic writing, which stands for a voiceless uvular trill. Added in Unicode 4.0 (2003).

Rho in formulas and spelling 8

Double rho Made of U+03C1 and U+03C1. Two plain rhos, the spelling that replaced the pair with breathing marks.
Double rho, old spelling Made of U+1FE4 and U+1FE5. Two rhos, the first with smooth and the second with rough breathing: the way a double rho was written until the 19th century.
Gramma abbreviation Made of U+03B3 and U+03FC. Gamma and the stroked rho: an old abbreviation of the Greek word gramma as a unit of measurement.
Negative rho meson Made of U+03C1 and U+207B. Rho with a raised minus sign: the rho meson with a negative charge.
Positive rho meson Made of U+03C1 and U+207A. Rho with a raised plus sign: the rho meson with a positive charge.
Rho in ancient Greek Made of U+1FE5 and U+1FF6. Rho with rough breathing and omega with a circumflex: the name of the letter in old spelling.
Rho in modern Greek Made of U+03C1 and U+03BF. Rho and omicron: one of the two ways modern Greek writes the name of the letter.
Rho spelled with omega Made of U+03C1 and U+03C9. Rho and omega: the other modern spelling of the letter's name.

Rho outside Greek 5

APL functional symbol rho U+2374. The rho of the APL programming language, where it means reshape.
Coptic capital letter ro U+2CA2. The Coptic letter in rho's place, named ro in Unicode. The Coptic alphabet descends from the Greek one and got code points of its own in Unicode 4.1 (2005).
Coptic small letter ro U+2CA3. Small ro, the lowercase of the Coptic rho.
Cyrillic capital letter er U+0420. The Cyrillic letter er, which arose from rho and writes the sound r. It too is drawn like a Latin P.
Cyrillic small letter er U+0440. Small er, the lowercase of the Cyrillic letter.

Look-alikes that are not rho 2

Latin capital letter P U+0050. The Latin capital P, on every keyboard. Capital rho has the same shape and another code point, U+03A1.
Latin small letter P U+0070. The Latin small p, on every keyboard. Biology writes one protein with the tailed rho so it is not read as this letter.

How this list was compiled: Names, and the code points they belong to, are from UnicodeData.txt, version 18.0.0 (https://www.unicode.org/Public/18.0.0/ucd/UnicodeData.txt), printed in sentence case; its decomposition field is what says a math alphabet character is a plain letter in a font, or that an accented letter is a letter plus its marks. Aliases, notes and cross-references are from NamesList.txt of the same version (https://www.unicode.org/Public/18.0.0/ucd/NamesList.txt), the version a character was added in is from DerivedAge.txt (https://www.unicode.org/Public/18.0.0/ucd/DerivedAge.txt), and the years are from https://www.unicode.org/history/publicationdates.html. Alt codes are from the code page 437 table (https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/PC/CP437.TXT). HTML entity names are from https://html.spec.whatwg.org/entities.json, the shortest standard name first. LaTeX macros are listed only when LaTeX's own fontdef.dtx (https://github.com/latex3/latex2e/tree/develop/base) declares them, matched to a code point through unicode-math-table.tex (https://github.com/latex3/unicode-math). A cell is empty where no such method exists. What rho is for, as https://en.wikipedia.org/wiki/Rho records it: the seventeenth letter, the numeral value 100, the capital that shares its shape with the Latin P, density, resistivity, the correlation coefficient and the polar coordinate, the rho mesons, the spectral radius, the breathing marks on a rho that starts a word, double rho and its spelling until the 19th century, the stroked rho of abbreviations, the names of the letter in Greek, the tailed rho of one protein name, the Latin R and Cyrillic er that arose from rho, and the rho of the APL language. The Coptic alphabet as a descendant of the Greek one, given code points of its own in Unicode 4.1: https://en.wikipedia.org/wiki/Greek_alphabet. Listed: every character Unicode names rho in the Greek blocks, the three with breathing marks, the fifteen math alphabet forms, the lowered and the small capital rho, the Coptic and Cyrillic letters, the APL sign, the Latin p it is mistaken for, and this site's own strings of two to four characters, each written the way the article writes it. Left out: the other Greek letters (each has its own page), the chi rho and tau rho monograms, which belong with the crosses and religious signs, and the characters of other scripts that only share the name. The Start here group, the made rows and the order are this site's own choice. All sources were read on 1 October 2026; Wikipedia text is CC BY-SA 4.0 and restated in this site's own words. Licence: own work (facts from the Unicode Character Database, Unicode License v3, and from Wikipedia, CC BY-SA 4.0, restated in this site's own words; aliases and notes marked as Unicode's are quoted from NamesList.txt, Copyright © 1991-2026 Unicode, Inc., https://www.unicode.org/license.txt)