Korean syllables

The maximum number of syllables that can be written in Hangeul is 11,172. The number of initial sounds in Hangeul is 19 (ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ ㅇ ㅈ ㅊ ㅋ ㅌ ㅍ ㅎ ㄲ ㄸ ㅃ ㅆ ㅉ), the number of neutral sounds is 21 (ㅏ ㅑ ㅓ ㅕ ㅗ  ㅛ  ㅜ  ㅠ  ㅡ ㅣ ㅐ ㅒ ㅔ  ㅖ  ㅘ  ㅚ  ㅙ  ㅝ  ㅟ  ㅞ  ㅢ), and the number of final sounds is 27 (ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ ㅇ ㅈ ㅊ ㅋ ㅊ ㅍ ㅎ ㄲ ㅆ ㄳ ㄵ ㄶ ㄺ ㄻ ㄼ ㄽ ㄾ ㄿ ㅀ ㅄ), but there is one case where there is no final sound, so if we assume that there are 28 combinations, the total number of characters in Hangeul is 11172. (19 x 21 x 28 = 11172). Of the 11,172 characters, around 2,500 are used. In modern Korean, many letters are not used because of the loss of speech sounds, but these letters can be applied to write down various speech sounds. ​