How young can a Formula 1 world champion actually be?

Kimi Antonelli became Formula 1 world champion in 2026 at 20 years and 68 days old, breaking Sebastian Vettel's previous age record by more than three years. But does that make Antonelli the youngest Formula 1 world champion of all time? So far yes, but there is room for someone to come and usurp the Italian.

But how young can a Formula 1 world champion actually be, and what are the chances of Antonelli losing his age record to an even younger driver?