Lorelai Gilmore was 32 years old in the first season of Gilmore Girls, with her daughter Rory celebrating her 16th birthday. Lorelai is 39 years old by the end of Gilmore Girls season 7, with each season spanning from the latter half of one year and ending just before the summer. In Gilmore Girls: A Year in the Life, Lorelai is 48 years old for the majority of it, while Rory becomes pregnant at 32.

Lorelai Gilmore is one of the two characters at the heart of Gilmore Girls, but how old is Lorelai Gilmore when the series begins, and in Netflix's revival, Gilmore Girls: A Year in the Life? Played by Lauren Graham, it's Lorelai and her relationship with daughter Rory (Alexis Bledel) that dominates the show, providing much of its warmth, humor, and drama. Lorelai's relationship with her parents is particularly difficult because of events that happened long before those of the show.