how old is finn in adventure time
After season 3 ended, Pendleton Ward stated in an interview that Finn was 14. Finn was 15 years old in the second half of Season 5, according to Adam Muto. In the Season 6 finale, The Comet, Finn reveals that he has reached 16 years of age. Adventure Time is one of the few cartoons where time passes regularly, instead of characters staying the same age for the run of the show or aging through time skips. For these reasons, Finn likely turned 17 on March 14, 2016.