Which 45 do I use?
| Use | Korean | Sounds like | English |
|---|---|---|---|
| AgeNative | 마흔다섯 살 | maheundaseot sal | 45 years old |
| Counting thingsNative | 마흔다섯 개 | maheundaseot gae | 45 items |
| PeopleNative | 마흔다섯 명 | maheundaseot myeong | 45 people |
| MinutesSino | 사십오 분 | sasibo bun | 45 minutes |
| MoneySino | 사십오 원 | sasibo won | ₩45 |
| Price in thousandsSino | 사만 오천 원 | saman ocheon won | ₩45,000 |
| Floor, room, busSino | 사십오 층 | sasibo cheung | floor 45 |
| OrderNative | 마흔다섯 번째 | maheundaseot beonjjae | number 45 in order |
Good to know
- 사십오 is written that way but said [사시보]: linking (final moves to the next vowel).
How 사십오 is built
사십오 is 사 (4) × 십 (10) + 오 (5). Once you know 1 to 10, Sino-Korean numbers build themselves. In native Korean, the tens have their own words (열, 스물, 서른, 마흔, 쉰, 예순, 일흔, 여든, 아흔), so 마흔다섯 has to be learned.
사ㅅ+ㅏ십ㅅ+ㅣ+ㅂ오ㅇ+ㅗ
Need a bigger number, a price or a phone number? The Korean number converter handles any number, both systems, dates and times.
Frequently asked questions
How do you say 45 in Korean?
There are two ways: 사십오 (sasibo) from the Sino-Korean system and 마흔다섯 (maheundaseot) from the native Korean system.
How do you say "I am 45 years old" in Korean?
마흔다섯 살이에요 (maheundaseot sarieyo). Age uses native Korean numbers.
How do you say ₩45,000 in Korean?
사만 오천 원 (saman ocheon won). Money always uses Sino-Korean numbers, and Korean counts big amounts in units of 10,000 (만).
Romanization: Revised Romanization of Korean, with sound changes. Audio: a recorded native-sounding Korean voice.
Last checked: 2026-10-20