• 60 upsilon characters
  • Checked October 2026

Upsilon Symbol Copy and Paste

Copy υ, the Greek letter upsilon, or take the capital Υ, the hooked ϒ or an accented form.

υGreek small letter upsilonU+03C5Ready to copy

60 upsilon characters. Tap any value to copy it.

60 upsilon characters. A character and its name both copy the character. A code copies the code.
CharacterNameCode pointHTMLLaTeX
U+03C5. The Greek alphabet's twentieth letter. Early Greek said it oo and modern Greek says ee. It has no Alt code. υ in HTML and \upsilon in LaTeX.
U+03A5. The capital, drawn like a Latin Y, the letter that Latin took from it. Υ in HTML and \Upsilon in LaTeX.
U+03D2. Upsilon with hooked arms. Particle physics writes the upsilon particle with it, so that the letter is not read as a Latin Y. ϒ in HTML.
U+03CD. Small upsilon with the tonos, the one accent of modern Greek.
U+03CB. Small upsilon with a diaeresis.
U+1D710. Small upsilon in italic, the slanted letter of a printed formula: U+03C5 in a math font, by its Unicode definition.
U+1D6F6. Capital upsilon in italic, the slanted letter of a printed formula: U+03A5 in a math font, by its Unicode definition.
U+0059. The Latin capital Y, on every keyboard. Latin took it from upsilon to spell words borrowed from Greek.
U+0075. The Latin small u, on every keyboard. It arose from upsilon, much later than V and Y did.
U+03BC. Mu, a different Greek letter: a u shape with a tail in front. Unicode cross-references it to the micro sign. μ in HTML and \mu in LaTeX.

How it works

υ is the upsilon symbol: Greek small letter upsilon, U+03C5, the twentieth letter of the Greek alphabet. The rows add the capital Υ, the hooked ϒ, accented forms such as ύ and ϋ, and math styles such as 𝜐.

Read the full guide

Upsilon is the Greek letter for u

Upsilon is the Greek u: early Greek said it oo, and the Latin U, V, W and Y all arose from it. Modern Greek says it ee, and writes the sound oo with the pair ου.

Υ, the Greek letter that looks like Y

The capital Υ, U+03A5, is drawn like a Latin Y, which Latin took from it to spell Greek words. ϒ, U+03D2, is a hooked form that physics uses so the letter is not read as a Y. The small γ that looks like a y is gamma.

  • Capital upsilon takes only the rough breathing, as in Ὑ: Unicode has none with the smooth one.
  • μ looks like a u with a tail but is mu, a different letter.

Questions and answers

How do I type the upsilon symbol?

There is no Alt code for upsilon. HTML has υ and Υ, or the numbers υ and Υ. LaTeX has \upsilon and \Upsilon, both in math mode with no package.

What does upsilon stand for?

In particle physics ϒ names the upsilon particle, and in astrophysics it stands for the mass-to-light ratio. As a Greek numeral upsilon is 400. It is the Greek alphabet's twentieth letter.

How do you say upsilon?

American English says UP-sih-lon and British English yoop-SY-lon. The Greek name, ύψιλον, means plain u.

All 60 upsilon characters

Start here 10

  • Greek capital letter upsilon U+03A5. The capital, drawn like a Latin Y, the letter that Latin took from it. Υ in HTML and \Upsilon in LaTeX.
  • Greek small letter mu U+03BC. Mu, a different Greek letter: a u shape with a tail in front. Unicode cross-references it to the micro sign. μ in HTML and \mu in LaTeX.
  • Greek small letter upsilon U+03C5. The Greek alphabet's twentieth letter. Early Greek said it oo and modern Greek says ee. It has no Alt code. υ in HTML and \upsilon in LaTeX.
  • Greek small letter upsilon with dialytika U+03CB. Small upsilon with a diaeresis.
  • Greek small letter upsilon with tonos U+03CD. Small upsilon with the tonos, the one accent of modern Greek.
  • Greek upsilon with hook symbol U+03D2. Upsilon with hooked arms. Particle physics writes the upsilon particle with it, so that the letter is not read as a Latin Y. ϒ in HTML.
  • Latin capital letter Y U+0059. The Latin capital Y, on every keyboard. Latin took it from upsilon to spell words borrowed from Greek.
  • Latin small letter U U+0075. The Latin small u, on every keyboard. It arose from upsilon, much later than V and Y did.
  • Mathematical italic capital upsilon U+1D6F6. Capital upsilon in italic, the slanted letter of a printed formula: U+03A5 in a math font, by its Unicode definition.
  • Mathematical italic small upsilon U+1D710. Small upsilon in italic, the slanted letter of a printed formula: U+03C5 in a math font, by its Unicode definition.
Show all 60 upsilon characters (50 more)

Small upsilon υ 4

  • Mathematical bold italic small upsilon U+1D74A. Small upsilon in bold italic: U+03C5 in a math font, by its Unicode definition.
  • Mathematical bold small upsilon U+1D6D6. Small upsilon in upright bold: U+03C5 in a math font, by its Unicode definition.
  • Mathematical sans-serif bold italic small upsilon U+1D7BE. Small upsilon in bold italic with no serifs: U+03C5 in a math font, by its Unicode definition.
  • Mathematical sans-serif bold small upsilon U+1D784. Small upsilon in bold with no serifs: U+03C5 in a math font, by its Unicode definition.

Capital upsilon Υ 4

  • Mathematical bold capital upsilon U+1D6BC. Capital upsilon in upright bold: U+03A5 in a math font, by its Unicode definition.
  • Mathematical bold italic capital upsilon U+1D730. Capital upsilon in bold italic: U+03A5 in a math font, by its Unicode definition.
  • Mathematical sans-serif bold capital upsilon U+1D76A. Capital upsilon in bold with no serifs: U+03A5 in a math font, by its Unicode definition.
  • Mathematical sans-serif bold italic capital upsilon U+1D7A4. Capital upsilon in bold italic with no serifs: U+03A5 in a math font, by its Unicode definition.

Hooked upsilon ϒ 2

  • Greek upsilon with acute and hook symbol U+03D3. The hooked upsilon with an acute accent: U+03D2 plus a combining acute, by its Unicode definition.
  • Greek upsilon with diaeresis and hook symbol U+03D4. The hooked upsilon with two dots: U+03D2 plus a combining diaeresis, by its Unicode definition.

Accented upsilon for Greek text 27

  • Greek capital letter upsilon with dasia U+1F59. Capital upsilon with rough breathing.
  • Greek capital letter upsilon with dasia and oxia U+1F5D. Capital upsilon with rough breathing and an acute accent.
  • Greek capital letter upsilon with dasia and perispomeni U+1F5F. Capital upsilon with rough breathing and a circumflex.
  • Greek capital letter upsilon with dasia and varia U+1F5B. Capital upsilon with rough breathing and a grave accent.
  • Greek capital letter upsilon with dialytika U+03AB. Capital upsilon with a diaeresis.
  • Greek capital letter upsilon with macron U+1FE9. Capital upsilon with a macron, the mark of a long vowel.
  • Greek capital letter upsilon with oxia U+1FEB. Capital upsilon with an acute accent. Unicode treats it as the same letter as U+038E, the tonos form, and normalized text holds that one.
  • Greek capital letter upsilon with tonos U+038E. Capital upsilon with the tonos, the one accent of modern Greek.
  • Greek capital letter upsilon with varia U+1FEA. Capital upsilon with a grave accent.
  • Greek capital letter upsilon with vrachy U+1FE8. Capital upsilon with a breve, the mark of a short vowel.
  • Greek small letter upsilon with dasia U+1F51. Small upsilon with rough breathing.
  • Greek small letter upsilon with dasia and oxia U+1F55. Small upsilon with rough breathing and an acute accent.
  • Greek small letter upsilon with dasia and perispomeni U+1F57. Small upsilon with rough breathing and a circumflex.
  • Greek small letter upsilon with dasia and varia U+1F53. Small upsilon with rough breathing and a grave accent.
  • Greek small letter upsilon with dialytika and oxia U+1FE3. Small upsilon with a diaeresis and an acute accent. Unicode treats it as the same letter as U+03B0, the tonos form, and normalized text holds that one.
  • Greek small letter upsilon with dialytika and perispomeni U+1FE7. Small upsilon with a diaeresis and a circumflex.
  • Greek small letter upsilon with dialytika and tonos U+03B0. Small upsilon with a diaeresis and the tonos, the one accent of modern Greek.
  • Greek small letter upsilon with dialytika and varia U+1FE2. Small upsilon with a diaeresis and a grave accent.
  • Greek small letter upsilon with macron U+1FE1. Small upsilon with a macron, the mark of a long vowel.
  • Greek small letter upsilon with oxia U+1F7B. Small upsilon with an acute accent. Unicode treats it as the same letter as U+03CD, the tonos form, and normalized text holds that one.
  • Greek small letter upsilon with perispomeni U+1FE6. Small upsilon with a circumflex.
  • Greek small letter upsilon with psili U+1F50. Small upsilon with smooth breathing.
  • Greek small letter upsilon with psili and oxia U+1F54. Small upsilon with smooth breathing and an acute accent.
  • Greek small letter upsilon with psili and perispomeni U+1F56. Small upsilon with smooth breathing and a circumflex.
  • Greek small letter upsilon with psili and varia U+1F52. Small upsilon with smooth breathing and a grave accent.
  • Greek small letter upsilon with varia U+1F7A. Small upsilon with a grave accent.
  • Greek small letter upsilon with vrachy U+1FE0. Small upsilon with a breve, the mark of a short vowel.

Upsilon in pairs 3

  • Alpha upsilon Made of U+03B1 and U+03C5. Alpha and upsilon, a pair that modern Greek says af or av.
  • Epsilon upsilon Made of U+03B5 and U+03C5. Epsilon and upsilon, a pair that modern Greek says ef or ev.
  • Omicron upsilon Made of U+03BF and U+03C5. Omicron and upsilon, the pair that writes the sound oo in modern Greek.

Upsilon in other alphabets 8

  • Coptic capital letter ua U+2CA8. The Coptic letter in upsilon's place, named ua 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 ua U+2CA9. Small ua, the lowercase of the Coptic upsilon.
  • Cyrillic capital letter izhitsa U+0474. Izhitsa, an old Cyrillic letter that also arose from upsilon.
  • Cyrillic capital letter U U+0423. The Cyrillic letter u, which arose from upsilon and is drawn like a y.
  • Cyrillic small letter izhitsa U+0475. Small izhitsa, a v shape with one arm curled.
  • Cyrillic small letter U U+0443. Small Cyrillic u, the lowercase of the pair.
  • Latin capital letter upsilon U+01B1. The capital of the Latin upsilon, a letter of African languages.
  • Latin small letter upsilon U+028A. The Latin upsilon of the phonetic alphabet, the sign for a near-close near-back rounded vowel.

Look-alikes that are not upsilon 2

  • Latin small letter V U+0076. The Latin small v, on every keyboard, one of the four Latin letters that arose from upsilon.
  • Latin small letter V with hook U+028B. A Latin v with a hook, the phonetic sign for a labiodental approximant. Unicode cross-references it to upsilon.

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 upsilon is for, as https://en.wikipedia.org/wiki/Upsilon records it: the twentieth letter, the numeral value 400, the sound oo of early Greek and ee of modern Greek, the pairs with alpha, epsilon and omicron, the rough breathing on a first upsilon, the name that means plain u, the Latin V, Y, U and W and the Cyrillic u and izhitsa that arose from it, the Latin Y taken to spell Greek words, the hooked form of particle physics, the two ways of saying the name, and the Latin v with a hook. The marks of Greek spelling: the tonos, the diaeresis, the breathings, the accents, the macron and the breve: https://en.wikipedia.org/wiki/Greek_diacritics. 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 upsilon in the Greek blocks: the two letters, the three hooked symbols, the five with a tonos or a diaeresis, the twenty-four of the Greek Extended block and the ten math alphabet forms; then the Latin, Coptic and Cyrillic letters, five look-alikes and three pairs of letters. Left out: the other Greek letters (mu appears once, as a look-alike), three rare phonetic letters, one of them added in Unicode 18.0, and the sign of Aries, which is an emoji on most devices. 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)