How to say "18 western age" in Korean?
How many ways to say that sentence?

Question

Answer

18 세의 서양인 "을 한국어로?

Answer

The literal translation would be 서양 나이로 18살, but I doubt anyone ever says that.

We usually say 만 18살 or 만으로 18살, and sometimes 만 나이로 18살 but this's rare.

Example:
- 얘 이제 몇 살이지?  = How old is he now?
- (한국 나이로) 세살이야.  만으론 2살하고 6개월 됐어.  = He's three (in the Korean age), or two years and six months in the western age.