Board Thread:Fourth Databook/@comment-24577388-20141105025614/@comment-10330822-20141105175602

Yeah, I know, that's what I mean. Kakashi graduated the Academy at 5, 8 years before he became a Jonin, and 9 years before Naruto was born.

Minato died at 24, when Kakashi was 14, that means he was 15 when Kakashi graduated and became his student, and then 16 when Kakashi became a Chunin, and then 19 when both Obito and Rin became his students and then 21 when all of his students became Chunin. He was then 23 when Kakashi became Jonin, and when he became Hokage and promoted Kakashi to ANBU.