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Learn Korean Numbers
This page covers the Sino-Korean number system (일, 이, 삼…), which is the system used for large numbers, dates, money, and phone numbers.
Digits: 0–9
- 0 = 영 (yeong)
- 1 = 일 (il)
- 2 = 이 (i)
- 3 = 삼 (sam)
- 4 = 사 (sa)
- 5 = 오 (o)
- 6 = 육 (yuk)
- 7 = 칠 (chil)
- 8 = 팔 (pal)
- 9 = 구 (gu)
10–99: tens
십 (sip) means 10. The system is fully regular:
- 10 = 십
- 11 = 십일
- 20 = 이십
- 35 = 삼십오
- 99 = 구십구
Quick check: 15, 42, 78?
15 십오 · 42 사십이 · 78 칠십팔
Hundreds
백 (baek) means 100:
- 100 = 백
- 200 = 이백
- 500 = 오백
- 321 = 삼백이십일
Thousands
천 (cheon) means 1,000:
- 1,000 = 천
- 2,000 = 이천
- 5,678 = 오천육백칠십팔
Large numbers: 만 (10,000+)
Like Japanese, Korean groups in units of 10,000 (만, man):
- 10,000 = 만
- 100,000 = 십만
- 1,000,000 = 백만
The Sino-Korean system is very regular — once you know the digits and place values, you can build any number.