Eta Symbol Copy and Paste

Copy η, the Greek letter eta, or take the capital Η, the accented ή or a math style.

ηGreek small letter etaU+03B7Ready to copy

32 eta characters and strings. Tap any value to copy it.

32 eta characters and strings. A character and its name both copy the character. A code copies the code.
Character	Name	Code point	HTML	LaTeX
	U+03B7. Seventh in the Greek alphabet. In modern Greek it writes the vowel i; in classical Greek it was a long e. As a symbol it stands for efficiency and for viscosity. HTML has η and LaTeX \eta.
	U+0397. The capital, which shares its shape with the Latin H but is a vowel. Information theory writes entropy with it. Its HTML name is Η.
	U+03AE. The eta of everyday Greek text when its syllable is stressed: eta plus the tonos, the only accent modern spelling has.
	U+0389. Capital eta with the tonos, which stands to the left of a capital.
	U+1D702. Small eta in italic type. A formula may use it; Greek words keep U+03B7.
	U+1D6E8. Capital eta, italic, for formulas. Entropy is a quantity written with capital eta.
	Made of U+03B7 and U+00B2. Eta with a raised 2. Chemistry writes hapticity this way: a ligand held through 2 atoms in a row.
	U+0048. The Latin H, a consonant. It is drawn like capital eta, and the Latin alphabet got it from the time when the Greek shape still wrote h.
	U+019E. A Latin n whose right leg runs below the line, as small eta's does. Unicode notes a past use in Lakota. It is not eta.
	U+014B. Eng, also called engma: the phonetic letter for the ng of sing. Its right leg ends in a hook. &eng; in HTML.
	U+1D6C8. Small eta in bold type. A formula may use it; Greek words keep U+03B7.
	U+1D73C. Small eta in bold italic type. A formula may use it; Greek words keep U+03B7.
	U+1D776. Small eta in sans-serif bold type. A formula may use it; Greek words keep U+03B7.
	U+1D7B0. Small eta in sans-serif bold italic type. A formula may use it; Greek words keep U+03B7.
	U+1D6AE. Capital eta, bold, for formulas. Entropy is a quantity written with capital eta.
	U+1D722. Capital eta, bold italic, for formulas. Entropy is a quantity written with capital eta.
	U+1D75C. Capital eta, sans-serif bold, for formulas. Entropy is a quantity written with capital eta.
	U+1D796. Capital eta, sans-serif bold italic, for formulas. Entropy is a quantity written with capital eta.
	U+1F20. Eta carrying the psili, the smooth breathing of the older, many-accent spelling.
	U+1F21. Eta carrying the dasia, the rough breathing, which marks an h before the vowel. The sign grew out of a halved letter H.
	U+1F74. Eta with the varia, the accent that slopes down to the right, called grave in English.
	U+1FC6. Eta with the perispomeni, a circumflex.
	U+1FC3. Eta with ypogegrammeni: the tiny stroke below it is an iota, which is why English calls the mark iota subscript.
	Made of U+03B7 and U+2075. Eta with a raised 5, the hapticity of each ring of ferrocene.
	Made of U+03AE, U+03C4 and U+03B1. Three letters: how modern Greek spells this letter's name, which it says ee-ta.
	Made of U+03B7 and U+0374. Eta followed by the keraia, the stroke that turns a letter into a number: 8.
	U+0370. Heta, a halved H. Some old Greek alphabets wrote the consonant h with it once the full shape had become the vowel. In Unicode since 5.1 (2008).
	U+0371. Heta, small.
	U+0418. The Cyrillic letter that came from eta. Like modern eta it writes the vowel i.
	U+0438. Cyrillic i, small.
	U+041D. Cyrillic en, which looks like capital eta and writes n. It descends from a different Greek letter, nu.
	U+0220. The capital partner of ƞ. It reached Unicode later than the small letter, in version 3.2.

Next step θ, Θ and ϑ, the letter after eta

How it works

η is the eta symbol: Greek small letter eta, U+03B7, the seventh letter of the Greek alphabet. The rows add the capital Η, accented forms such as ή, math styles such as 𝜂, and the look-alikes H, ƞ and ŋ.

Read the full guide

Η is a vowel, H is a consonant

Capital eta, U+0397, and the Latin H, U+0048, are drawn alike and are two characters. Early Greek alphabets wrote the sound h with the shape, and Latin took its H from them. Greek then gave the letter to a long e. In modern Greek it writes the vowel i, as iota does.

The eta letter with an accent

Modern Greek spelling has one accent, the tonos: ή and Ή. The older spelling adds breathings and other marks, as in ἡ, ἠ, ῆ and ῃ.

As a Greek numeral eta is 8, written ηʹ. In the older Attic numbers Η stood for 100.
Without a package LaTeX has \eta and no \Eta, the capital that looks like a Latin H.

Questions and answers

How do I type the eta symbol?

No Alt code types eta, so copying is the short way. In HTML η is the small letter and Η the capital, η and Η as numbers. In LaTeX \eta prints η in math mode.

Is there a Greek letter H?

The Greek letter shaped like H is capital eta, Η, and it is a vowel. Early Greek alphabets used the shape for the consonant h. Later spelling marked that sound with the rough breathing, as in ἡ.

Which Greek letter stands for efficiency?

Small eta, η. Thermodynamics writes the efficiency of a heat engine with it, and power electronics the efficiency of a power supply, which is output power over input power.

How do you say eta?

English says EE-ta or AY-ta. Modern Greek says ee-ta and writes the name ήτα.

All 32 eta characters and strings

Start here 10

Eta two Made of U+03B7 and U+00B2. Eta with a raised 2. Chemistry writes hapticity this way: a ligand held through 2 atoms in a row.
Greek capital letter eta U+0397. The capital, which shares its shape with the Latin H but is a vowel. Information theory writes entropy with it. Its HTML name is Η.
Greek capital letter eta with tonos U+0389. Capital eta with the tonos, which stands to the left of a capital.
Greek small letter eta U+03B7. Seventh in the Greek alphabet. In modern Greek it writes the vowel i; in classical Greek it was a long e. As a symbol it stands for efficiency and for viscosity. HTML has η and LaTeX \eta.
Greek small letter eta with tonos U+03AE. The eta of everyday Greek text when its syllable is stressed: eta plus the tonos, the only accent modern spelling has.
Latin capital letter H U+0048. The Latin H, a consonant. It is drawn like capital eta, and the Latin alphabet got it from the time when the Greek shape still wrote h.

Show all 32 eta characters and strings (26 more)

Start here, continued

Latin small letter eng U+014B. Eng, also called engma: the phonetic letter for the ng of sing. Its right leg ends in a hook. &eng; in HTML.
Latin small letter N with long right leg U+019E. A Latin n whose right leg runs below the line, as small eta's does. Unicode notes a past use in Lakota. It is not eta.
Mathematical italic capital eta U+1D6E8. Capital eta, italic, for formulas. Entropy is a quantity written with capital eta.
Mathematical italic small eta U+1D702. Small eta in italic type. A formula may use it; Greek words keep U+03B7.

Small eta η 4

Mathematical bold italic small eta U+1D73C. Small eta in bold italic type. A formula may use it; Greek words keep U+03B7.
Mathematical bold small eta U+1D6C8. Small eta in bold type. A formula may use it; Greek words keep U+03B7.
Mathematical sans-serif bold italic small eta U+1D7B0. Small eta in sans-serif bold italic type. A formula may use it; Greek words keep U+03B7.
Mathematical sans-serif bold small eta U+1D776. Small eta in sans-serif bold type. A formula may use it; Greek words keep U+03B7.

Capital eta Η 4

Mathematical bold capital eta U+1D6AE. Capital eta, bold, for formulas. Entropy is a quantity written with capital eta.
Mathematical bold italic capital eta U+1D722. Capital eta, bold italic, for formulas. Entropy is a quantity written with capital eta.
Mathematical sans-serif bold capital eta U+1D75C. Capital eta, sans-serif bold, for formulas. Entropy is a quantity written with capital eta.
Mathematical sans-serif bold italic capital eta U+1D796. Capital eta, sans-serif bold italic, for formulas. Entropy is a quantity written with capital eta.

Eta with accents 5

Greek small letter eta with dasia U+1F21. Eta carrying the dasia, the rough breathing, which marks an h before the vowel. The sign grew out of a halved letter H.
Greek small letter eta with perispomeni U+1FC6. Eta with the perispomeni, a circumflex.
Greek small letter eta with psili U+1F20. Eta carrying the psili, the smooth breathing of the older, many-accent spelling.
Greek small letter eta with varia U+1F74. Eta with the varia, the accent that slopes down to the right, called grave in English.
Greek small letter eta with ypogegrammeni U+1FC3. Eta with ypogegrammeni: the tiny stroke below it is an iota, which is why English calls the mark iota subscript.

Eta in formulas and spelling 3

Eta as a numeral Made of U+03B7 and U+0374. Eta followed by the keraia, the stroke that turns a letter into a number: 8.
Eta five Made of U+03B7 and U+2075. Eta with a raised 5, the hapticity of each ring of ferrocene.
Eta in Greek Made of U+03AE, U+03C4 and U+03B1. Three letters: how modern Greek spells this letter's name, which it says ee-ta.

Heta and the Cyrillic letter 4

Cyrillic capital letter I U+0418. The Cyrillic letter that came from eta. Like modern eta it writes the vowel i.
Cyrillic small letter I U+0438. Cyrillic i, small.
Greek capital letter heta U+0370. Heta, a halved H. Some old Greek alphabets wrote the consonant h with it once the full shape had become the vowel. In Unicode since 5.1 (2008).
Greek small letter heta U+0371. Heta, small.

Look-alikes that are not eta 2

Cyrillic capital letter en U+041D. Cyrillic en, which looks like capital eta and writes n. It descends from a different Greek letter, nu.
Latin capital letter N with long right leg U+0220. The capital partner of ƞ. It reached Unicode later than the small letter, in version 3.2.

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 eta is for, as https://en.wikipedia.org/wiki/Eta records it: the seventh letter, the vowel it writes in modern and in classical Greek, its first use for the consonant h and the Latin H that came of it, the half letter heta and the rough breathing, the numeral value 8 and the Attic sign for 100, the two English ways of saying the name and the Greek one, efficiency, viscosity, the eta mesons and entropy among its uses, the Cyrillic letter that came from it, the letters it is not to be confused with, and the rule that styled Greek text keeps the plain letters. Hapticity and how chemistry writes it: https://en.wikipedia.org/wiki/Hapticity. Heta: https://en.wikipedia.org/wiki/Heta. Cyrillic en as a letter that came from nu: https://en.wikipedia.org/wiki/Nu_(Greek). The one accent of modern Greek spelling, the names of the older marks, and the numeral stroke: https://en.wikipedia.org/wiki/Greek_alphabet. Listed: the two letters, seven accented forms, the ten math alphabet forms, heta, the Cyrillic letter, five characters it is mistaken for, 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, the remaining accented forms of the many-accent spelling (a breathing with an accent, and their capitals), and the Coptic letter. The Start here group, the made rows and the order are this site's own choice. All sources were read on 2 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)