Stewie is ageless, but his specific age is shrouded in secrecy. It's unclear the exact number of years Stewie entered existing. The baby character from the animated television show "Family Guy" is immortal. His age is yet to be determined.
Stewie, the cunning infant prodigy, is hiding his true age from the world. Speculation is rampant as to his actual age. Is he ancient beyond measure? Or is he a recent arrival? The answer is known only to Stewie! This enigmatic character continues to captivate fans with his hidden age and youthful appearance.

Family Guy Quel âge a Stewie Tout sur le Adoxa