Everyone wants to know everything there is to know about this guy, including his age.
The main reason this question has been raised quite a lot of time is because it doesn’t have such an easy answer, and given how turbulent this poor man’s life has been, it is difficult to actually calculate how old Kakashi actually is.
Kakashi Hatake’s Life Timeline
So, let’s take a short overview of what Kakashi’s life was like:
– Kakashi is born.
– Kakashi’s mother died. (Probably. Just mentioned very early without any concrete information.)
– Kakashi becomes Genin.
– Kakashi’s father died of suicide. (Probably. 5 years before Kakashi Gaiden begins where Kakashi is a 9-10 year old.)
– Kakashi becomes Chūnin.
– Kakashi becomes Jonin.
– Kakashi leads his own team in the Third Shinobi War and Obito Uchiha dies.
– Next mission, Rin is kidnapped by Kiri-Kagure Ninja’s and she dies by suicide, by stepping in front of Kakashi’s Chidori
– Nine-tailed Fox attack on Konoha but Kakashi not allowed to fight.
– Kakashi joins the Root and becomes an Anbu
– Kakashi becomes leader of a Root team
– Kakashi quits the Root after talking to the Third Hokage and joins him as his right hand man
– Kakashi discovers Orochimaru is behind experiments with the wood element but fails to stop him.
– Saves Kinoe from The Root and adds him to his team Ro under name Tenzo.
– Itachi Uchiha gets added to team
– Kakashi relieved of his Anbu duties after the Uchiha Massacre.
– Kakashi becomes Jonin incharge of students.
– Kakashi passes Team 7 as Genin team.
– A-rank mission against Zabuza and Haku
– Seals Sasuke’s curse mark during Chūnin Exams
– Dispels Kabuto’s genjutsu and prepare to fight.
– Kakashi goes with Naruto and Sakura to help rescue Gaara
– Kakashi trains Naruto in his wind nature.
– Kakashi aids fight with Team 10 against Hidan and Kakuzu
– Dies during Pain’s assault on Konoha but is ressurected.
– Accompanies Naruto to Land of Iron to talk to the Raikage
– Contributes in the Fourth Shinobi War
– Becomes Sixth Hokage
– Naruto becomes Seventh Hokage and Kakashi retires.
The ways of calculating Kakashi’s age would be to take the facts that we know about his age and the time that has passed between two events.
We know from the databooks alone that Kakashi is 26 when Naruto is 12 and he becomes Genin.
So, in the beginning of the Series, Kakashi is a confirmed 26 years old.
Throughout the series until Naruto goes to train with Jiraiya it is safe to assume 26-27 years old.
Jiraiya trained Naruto for 3 years.
So, at the beginning of Naruto Shippuden, Kakashi is 29-30 years old.
By the end of the Fourth Shinobi War, Kakashi was 31.
After the War, Kakashi becomes the Sixth Hokage at 31 years of age.
We know that this is correct because we can cross-check the difference of Kakashi’s age to give us Naruto’s age in Boruto.
46 (Kakashi’s age) – 14 (age difference) = 32 (Naruto’s age in Boruto)
Boruto is a confirmed 12 years old in the Boruto series.
Naruto and Hinata get married at 20 years of age after the War and Naruto the Movie: The Last where they are 19 and 18 respectively and confess their love for each other.
Considering that Boruto was born around the age of their wedding, Naruto minimum needs to be 32 years old as of now.
This perfectly matches with the age that we got from the age difference, thus confirming that Kakashi in Boruto is indeed 46 years old at the least.
So, to sum up
• When Naruto starts, Kakashi is 26.
• When Naruto Shippuden starts, Kakashi is 29-30.
• During the Fourth Shinobi War Kakashi is 31.
• In Boruto, Kakashi is 46.