Ninja school graduation age: 12
Age: 12 ~ 13 years old (part 1); 16 years old (gale)
Uchiha Sasuke
Ninja school graduation age: 12
Currently 16 years old.
Haruno Sakura
Age: Part I 12 years old
The second part 15 years old
Kakashi Hatak
Birthday: September 15 (thirty-four years of virgo konoha)
Age: 26 years old (Part I)