Frieren is an elf who has lived for over 1,000 years, likely between 1,100 and 1,500 years old. Despite her youthful appearance, which resembles a teenager in human years (around 15 to 19 years old physically), her actual age is much greater due to her long-lived elven race
. She was already about 900 years old when she met Himmel, a human hero, and her decade-long adventure with the Hero Party was only a tiny fraction of her lifespan
. Elves in her world live for millennia, and Frieren is still considered young by elven standards even at her age
. In summary, Frieren is roughly over 1,000 years old but looks like a young human teenager because elves age very slowly and have a vastly extended lifespan compared to humans
