Phi Symbol Copy and Paste

Copy φ, the Greek letter phi, or take the phi symbol ϕ, the capital Φ or a math style.

φGreek small letter phiU+03C6Ready to copy

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

41 phi characters and strings. A character and its name both copy the character. A code copies the code.
Character	Name	Code point	Alt code	Option keys	HTML	LaTeX
	U+03C6. The Greek alphabet's twenty-first letter. A font may draw it with an open loop or as a ring with a stroke. Alt+237 on a number pad, φ in HTML and \varphi in LaTeX. It stands for the golden ratio and for a second angle after theta.
	U+03D5. The phi symbol, meant to be drawn closed: a ring with an upright stroke through it. Unicode's names list calls it a technical symbol drawn with a stroke. ϕ in HTML and \phi in LaTeX.
	U+03A6. The capital. Alt+232 on a number pad, Φ in HTML and \Phi in LaTeX. It stands for magnetic flux and for the cumulative distribution function of the standard normal distribution.
	U+1D711. Small phi in italic, the slanted letter of a printed formula: U+03C6 in a math font, by its Unicode definition.
	U+1D719. The phi symbol in italic, the slanted letter of a printed formula: U+03D5 in a math font, by its Unicode definition.
	U+1D6F7. Capital phi in italic, the slanted letter of a printed formula: U+03A6 in a math font, by its Unicode definition.
	U+1D60. A raised small phi: a superscript U+03C6 by its Unicode definition. Added in Unicode 4.0 (2003).
	U+1D69. A lowered small phi: a subscript U+03C6 by its Unicode definition. Added in Unicode 4.0 (2003).
	Made of U+03C6, U+0028, U+006E and U+0029. Small phi, then n in parentheses: Euler's totient function, also called Euler's phi function, which counts the numbers from 1 to n that share no factor with n other than 1.
	Made of U+0031, U+002F and U+03C6. One, a slash and phi: the reciprocal of the golden ratio, which equals the golden ratio minus one.
	U+1D6D7. Small phi in upright bold: U+03C6 in a math font, by its Unicode definition.
	U+1D74B. Small phi in bold italic: U+03C6 in a math font, by its Unicode definition.
	U+1D785. Small phi in bold with no serifs: U+03C6 in a math font, by its Unicode definition.
	U+1D7BF. Small phi in bold italic with no serifs: U+03C6 in a math font, by its Unicode definition.
	U+1D6DF. The phi symbol in upright bold: U+03D5 in a math font, by its Unicode definition.
	U+1D753. The phi symbol in bold italic: U+03D5 in a math font, by its Unicode definition.
	U+1D78D. The phi symbol in bold with no serifs: U+03D5 in a math font, by its Unicode definition.
	U+1D7C7. The phi symbol in bold italic with no serifs: U+03D5 in a math font, by its Unicode definition.
	U+1D6BD. Capital phi in upright bold: U+03A6 in a math font, by its Unicode definition.
	U+1D731. Capital phi in bold italic: U+03A6 in a math font, by its Unicode definition.
	U+1D76B. Capital phi in bold with no serifs: U+03A6 in a math font, by its Unicode definition.
	U+1D7A5. Capital phi in bold italic with no serifs: U+03A6 in a math font, by its Unicode definition.
	U+1DB2. A raised Latin phi, U+0278, the phonetic letter. Added in Unicode 4.1 (2005).
	Made of U+0031 and U+03D5. The digit one and the phi symbol, an electrical engineer's short form for single phase.
	Made of U+0033 and U+03D5. The digit three and the phi symbol, the short form for three phase power.
	Made of U+004D and U+03D5. A capital M and the phi symbol, used in biology as an abbreviation for the word macrophage.
	Made of U+03C6 and U+02B9. Phi with a stroke after it: phi has the value 500 in traditional Greek numerals.
	Made of U+0375 and U+03C6. The Greek lower numeral sign in front of phi, which multiplies its value of 500 by a thousand.
	Made of U+03C6 and U+03B9. Phi and iota: the name of the letter as modern Greek writes it, said fee.
	Made of U+03C6, U+03B5 and U+1FD6. Phi, epsilon and an iota with a circumflex: the ancient Greek name of the letter.
	U+0278. The phi of the phonetic alphabet, the sign for a voiceless bilabial fricative: an f made with both lips.
	U+2C77. A phi with no tail, which Unicode's names list glosses as a medium rounded o. Added in Unicode 5.0 (2006).
	U+0424. The Cyrillic letter ef, which descends from phi and writes the sound f.
	U+0444. Small ef, the lowercase of the Cyrillic pair.
	U+2CAA. The Coptic letter in phi's place, named fi in Unicode. The Coptic alphabet descends from the Greek one and got code points of its own in Unicode 4.1 (2005).
	U+2CAB. Small fi, the lowercase of the Coptic phi.
	U+2300. The diameter sign of engineering drawings, with a slanted stroke. It is often called phi and is a different character.
	U+2205. The empty set, or null set, of mathematics. It is sometimes mistaken for phi. ∅ in HTML and \emptyset in LaTeX.
	U+00D8. The slashed O of Danish and Norwegian, a letter of the Latin alphabet. Its stroke slants where phi's stands upright.
	U+03D8. Archaic koppa, a ring on a short stem. Phi may have begun as this letter. Added in Unicode 3.2 (2002).
	U+29B6. A math operator: a bar that stays inside its ring, where the stroke of a capital phi pokes out above and below.

Next step φ is Alt+237: see every Alt code θ next, the angle named before φ

How it works

φ is phi: Greek small letter phi, U+03C6, the Greek alphabet's twenty-first letter. The rows add ϕ, which Unicode names the phi symbol, capital Φ, math styles such as 𝜑, raised and lowered phi, and the numeral φʹ.

Read the full guide

φ and ϕ swap names between HTML and LaTeX

Unicode has two small phis. φ, U+03C6, is the letter of Greek text, which a font may draw looped or closed. ϕ, U+03D5, is the symbol, a ring with a stroke through it. In HTML φ is the letter and &straightphi; the symbol. LaTeX goes the other way: \phi prints the closed shape and \varphi the looped one.

Phi is the Greek letter for f

Modern Greek says phi as f: φ small, Φ capital. In ancient Greek it was a p said with a puff of air, which is why words taken from Greek spell it ph.

⌀ is the diameter sign and ∅ the empty set. Neither is phi, though both get called it.
As a Greek numeral φʹ is 500, and ͵φ, with a low stroke in front, is 500,000.

Questions and answers

What is the Alt code for phi?

Alt+237 types the small φ and Alt+232 the capital Φ. Hold Alt, type the number on the number pad with Num Lock on, then let go. The symbol ϕ has no Alt code.

What is the HTML code for phi?

φ is the small letter and Φ the capital. As numbers, φ is φ or φ. The symbol ϕ has three names, ϕ, ϕ and &straightphi;, so the ϕ of HTML is not the character that \varphi prints in LaTeX.

What does the letter phi stand for?

Small φ stands for the golden ratio, about 1.618, for Euler's totient function φ(n), and for a second angle after theta. Capital Φ stands for magnetic flux. Phi is the Greek alphabet's twenty-first letter.

How do you say phi?

English says phi two ways: fy, with the vowel of my, or fee. Modern Greek says fee and writes the name φι.

All 41 phi characters and strings

Start here 10

Greek capital letter phi U+03A6. The capital. Alt+232 on a number pad, Φ in HTML and \Phi in LaTeX. It stands for magnetic flux and for the cumulative distribution function of the standard normal distribution.
Greek phi symbol U+03D5. The phi symbol, meant to be drawn closed: a ring with an upright stroke through it. Unicode's names list calls it a technical symbol drawn with a stroke. ϕ in HTML and \phi in LaTeX.
Greek small letter phi U+03C6. The Greek alphabet's twenty-first letter. A font may draw it with an open loop or as a ring with a stroke. Alt+237 on a number pad, φ in HTML and \varphi in LaTeX. It stands for the golden ratio and for a second angle after theta.
Greek subscript small letter phi U+1D69. A lowered small phi: a subscript U+03C6 by its Unicode definition. Added in Unicode 4.0 (2003).
Mathematical italic capital phi U+1D6F7. Capital phi in italic, the slanted letter of a printed formula: U+03A6 in a math font, by its Unicode definition.
Mathematical italic phi symbol U+1D719. The phi symbol in italic, the slanted letter of a printed formula: U+03D5 in a math font, by its Unicode definition.

Show all 41 phi characters and strings (35 more)

Start here, continued

Mathematical italic small phi U+1D711. Small phi in italic, the slanted letter of a printed formula: U+03C6 in a math font, by its Unicode definition.
Modifier letter small Greek phi U+1D60. A raised small phi: a superscript U+03C6 by its Unicode definition. Added in Unicode 4.0 (2003).
One over phi Made of U+0031, U+002F and U+03C6. One, a slash and phi: the reciprocal of the golden ratio, which equals the golden ratio minus one.
Phi of n Made of U+03C6, U+0028, U+006E and U+0029. Small phi, then n in parentheses: Euler's totient function, also called Euler's phi function, which counts the numbers from 1 to n that share no factor with n other than 1.

Small phi φ 4

Mathematical bold italic small phi U+1D74B. Small phi in bold italic: U+03C6 in a math font, by its Unicode definition.
Mathematical bold small phi U+1D6D7. Small phi in upright bold: U+03C6 in a math font, by its Unicode definition.
Mathematical sans-serif bold italic small phi U+1D7BF. Small phi in bold italic with no serifs: U+03C6 in a math font, by its Unicode definition.
Mathematical sans-serif bold small phi U+1D785. Small phi in bold with no serifs: U+03C6 in a math font, by its Unicode definition.

Phi symbol ϕ 4

Mathematical bold italic phi symbol U+1D753. The phi symbol in bold italic: U+03D5 in a math font, by its Unicode definition.
Mathematical bold phi symbol U+1D6DF. The phi symbol in upright bold: U+03D5 in a math font, by its Unicode definition.
Mathematical sans-serif bold italic phi symbol U+1D7C7. The phi symbol in bold italic with no serifs: U+03D5 in a math font, by its Unicode definition.
Mathematical sans-serif bold phi symbol U+1D78D. The phi symbol in bold with no serifs: U+03D5 in a math font, by its Unicode definition.

Capital phi Φ 4

Mathematical bold capital phi U+1D6BD. Capital phi in upright bold: U+03A6 in a math font, by its Unicode definition.
Mathematical bold italic capital phi U+1D731. Capital phi in bold italic: U+03A6 in a math font, by its Unicode definition.
Mathematical sans-serif bold capital phi U+1D76B. Capital phi in bold with no serifs: U+03A6 in a math font, by its Unicode definition.
Mathematical sans-serif bold italic capital phi U+1D7A5. Capital phi in bold italic with no serifs: U+03A6 in a math font, by its Unicode definition.

Raised and lowered phi 1

Modifier letter small phi U+1DB2. A raised Latin phi, U+0278, the phonetic letter. Added in Unicode 4.1 (2005).

Phi in formulas and numerals 7

Greek numeral 500 Made of U+03C6 and U+02B9. Phi with a stroke after it: phi has the value 500 in traditional Greek numerals.
Greek numeral 500,000 Made of U+0375 and U+03C6. The Greek lower numeral sign in front of phi, which multiplies its value of 500 by a thousand.
Macrophage abbreviation Made of U+004D and U+03D5. A capital M and the phi symbol, used in biology as an abbreviation for the word macrophage.
Phi in ancient Greek Made of U+03C6, U+03B5 and U+1FD6. Phi, epsilon and an iota with a circumflex: the ancient Greek name of the letter.
Phi in modern Greek Made of U+03C6 and U+03B9. Phi and iota: the name of the letter as modern Greek writes it, said fee.
Single phase Made of U+0031 and U+03D5. The digit one and the phi symbol, an electrical engineer's short form for single phase.
Three phase Made of U+0033 and U+03D5. The digit three and the phi symbol, the short form for three phase power.

Phi in other alphabets 6

Coptic capital letter fi U+2CAA. The Coptic letter in phi's place, named fi 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 fi U+2CAB. Small fi, the lowercase of the Coptic phi.
Cyrillic capital letter ef U+0424. The Cyrillic letter ef, which descends from phi and writes the sound f.
Cyrillic small letter ef U+0444. Small ef, the lowercase of the Cyrillic pair.
Latin small letter phi U+0278. The phi of the phonetic alphabet, the sign for a voiceless bilabial fricative: an f made with both lips.
Latin small letter tailless phi U+2C77. A phi with no tail, which Unicode's names list glosses as a medium rounded o. Added in Unicode 5.0 (2006).

Look-alikes that are not phi 5

Circled vertical bar U+29B6. A math operator: a bar that stays inside its ring, where the stroke of a capital phi pokes out above and below.
Diameter sign U+2300. The diameter sign of engineering drawings, with a slanted stroke. It is often called phi and is a different character.
Empty set U+2205. The empty set, or null set, of mathematics. It is sometimes mistaken for phi. ∅ in HTML and \emptyset in LaTeX.
Greek letter archaic koppa U+03D8. Archaic koppa, a ring on a short stem. Phi may have begun as this letter. Added in Unicode 3.2 (2002).
Latin capital letter O with stroke U+00D8. The slashed O of Danish and Norwegian, a letter of the Latin alphabet. Its stroke slants where phi's stands upright.

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 phi is for, as https://en.wikipedia.org/wiki/Phi records it: the twenty-first letter, the closed glyph that has a code point of its own, the golden ratio and its reciprocal, Euler's totient function, the second angle after theta, magnetic flux, the normal distribution, single and three phase, the macrophage abbreviation, the numeral values 500 and 500,000, the names of the letter in ancient and modern Greek, the phonetic letter, the Cyrillic ef, the possible origin in koppa, and the diameter sign and empty set that are mistaken for phi. What Euler's totient function counts: https://en.wikipedia.org/wiki/Euler%27s_totient_function. The Coptic alphabet as a descendant of the Greek one, given code points of its own in Unicode 4.1, and the ancient name of phi spelled with the ordinary letter: https://en.wikipedia.org/wiki/Greek_alphabet. Listed: every character Unicode names phi in the Greek, Latin and modifier letter blocks, the fifteen math alphabet forms, the letters of other alphabets that the article or Unicode ties to phi, five characters often mistaken for it, and this site's own strings of two to four characters, each written the way a source writes it. Left out: the other Greek letters (each has its own page), every other slashed circle (the diameter sign page keeps them), a syllable of Ethiopic and a letter of Mro that only share the name, and one Latin letter added in Unicode 18.0 that few devices can draw yet. 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)