Princess Bubblegum is physically around 18–19 years old, but chronologically she is over 800 years old in Adventure Time’s canon.

Quick Scoop: How old is Princess Bubblegum?

  • In the show, Princess Bubblegum normally appears as an 18 - to 19-year-old young woman.
  • Due to an accident in the episode “Mortal Recoil,” she temporarily de-ages to 13, then later restores herself back to her older teen form in “Too Young.”
  • Lore and fan discussions place her true chronological age at roughly 800+ years , with many sources and fans citing around 825–835 years, sometimes “about 830.”
  • The Adventure Time Wiki and fan analyses explain that she was created from the Mother Gum long after the Mushroom War, which is why her timeline stretches across centuries.

So the fun paradox answer to “how old is Princess Bubblegum?” is:
Physically a late teen, canonically an ancient candy ruler who’s been around for centuries. 🍬👑

Information gathered from public forums or data available on the internet and portrayed here.