What is the high school graduation age in Japan? -

I want to know how old you have to be to graduate high school in Japan.

18. but few students who were born at the end of March may graduate at 17 because in Japan new semester starts in April and most of the schools graduation ceremony are held around March 20.

Depends if they transfer or have a summer B-day. The range is 17-19. Hope this helps! Ja-na!