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Korean Alphabet (Hangul) Reference

All 24 basic Hangul letters — 14 consonants and 10 vowels — with names, Revised Romanization, and sounds.

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Click any letter to copy it.

Beyond these 24 basic letters, Hangul also has 5 tense (double) consonants — ㄲ ㄸ ㅃ ㅆ ㅉ — and 11 complex vowels such as ㅐ (ae), ㅔ (e), and ㅢ (ui).

Hangul is the Korean alphabet. It has 24 basic letters — 14 consonants and 10 vowels — which combine into square syllable blocks rather than a straight line. So 한 is built from ㅎ (h) + ㅏ (a) + ㄴ (n), read “han”. Learn the 24 jamo and you can sound out any Korean word.

What is Hangul?

Hangul (한글) is the writing system for the Korean language. Unlike Chinese characters, it is a true alphabet: each letter, called a jamo, stands for a single consonant or vowel sound. There are 14 basic consonants and 10 basic vowels — 24 letters in all — plus tense consonants and complex vowels built from those basics.

How syllable blocks work

Korean does not write letters in one long row. Instead the jamo stack into square syllable blocks, each block one spoken syllable. A block starts with an initial consonant, adds a vowel to the right or below, and can end with a final consonant (the batchim). For example, 한 combines ㅎ + ㅏ + ㄴ into a single block read “han”, and 글 combines ㄱ + ㅡ + ㄹ to read “geul”.

A script that was designed

Most alphabets grew slowly over centuries, but Hangul was deliberately created in 1443 under King Sejong the Great and promulgated in 1446. It is a featural script: the consonant shapes are modelled on the position of the mouth and tongue when the sound is made, and related sounds share related shapes (ㄱ→ㅋ, ㄷ→ㅌ). This design is a big reason Hangul is often called quick to learn.

A first look at Hangul letters

A representative subset — search and copy the full set of 24 in the tool above.

LetterTypeRomanizationSound
ㄱConsonantg / kg as in “go”
ㄴConsonantnn as in “net”
ㅁConsonantmm as in “map”
ㅅConsonantss as in “sun”
ㅇConsonantng / silentsilent at start; ng at end
ㅎConsonanthh as in “hat”
ㅏVowelaa as in “father”
ㅓVoweleoeo as in “sun”
ㅗVoweloo as in “more”
ㅜVoweluoo as in “boot”
ㅡVoweleua tight “uh”
ㅣVoweliee as in “see”

Romanization is a guide, not a rule

The spellings above use Revised Romanization, the official South Korean system. It maps ㅓ to “eo” and ㅡ to “eu”, which is why Korean names look the way they do in English. Some consonants show two forms (ㄱ = g / k) because the same letter is pronounced softly at the start of a syllable and harder as a final consonant. Treat romanization as a bridge — the real spelling is always the Hangul itself, which you can copy from the tool.

Beyond the 24 basics

Once the basic jamo are familiar, two more groups fill in the gaps: five tense (double) consonants — ㄲ, ㄸ, ㅃ, ㅆ, ㅉ — and complex vowels such as ㅐ (ae), ㅔ (e), ㅚ (oe), and ㅢ (ui), each built by joining basic vowels. To hear how these sounds map to phonetics, pair this chart with the IPA pronunciation reference, or compare scripts with the Japanese kana chart.

How many letters are in Hangul?
The Korean alphabet has 24 basic letters: 14 consonants and 10 vowels. Adding the 5 tense consonants and 11 complex vowels built from the basics gives 40 letters in total.
How do Korean syllable blocks work?
Letters are grouped into square blocks, one per syllable. Each block has an initial consonant, a vowel, and an optional final consonant — for example 한 = ㅎ + ㅏ + ㄴ, read “han”.
Is Hangul an alphabet?
Yes. Each jamo represents one consonant or vowel sound, so Hangul is a true alphabet. It is unusual only in that the letters are packed into syllable blocks rather than written in a single line.
What is the difference between ㅓ and ㅗ?
ㅓ (eo) is an open “uh” sound as in “sun”, while ㅗ (o) is a rounded “o” as in “more”. They look similar but the stroke points in different directions, so beginners often mix them up.
Why do some Korean letters have two romanizations?
Consonants like ㄱ (g / k), ㄷ (d / t), and ㅂ (b / p) soften at the start of a syllable and harden as a final consonant, so Revised Romanization writes both forms depending on position.
Who created Hangul and when?
Hangul was created under King Sejong the Great in 1443 and officially published in 1446. It was designed on purpose, with consonant shapes based on the position of the mouth when each sound is made.
What are ㄲ, ㄸ, ㅃ, ㅆ, and ㅉ?
They are the five tense (double) consonants, written by doubling a basic consonant. They are pronounced more tightly and forcefully than the single versions — for example ㅅ (s) versus ㅆ (ss).