J.R.R. Tolkien doesn’t provide us with a lot of clues as to Elrond’s age except to say that Elrond founded Rivendell in S.A. 1697 and was its lord for thousands of years, including the events of The Hobbit and The Lord of the Rings. He ruled from the first age to the beginning of the fourth age. He was the son of Eärendil and Elwing, and a great-grandson of Lúthien, born in Beleriand in the First Age, making him well over 6,000 years old. One source I read placed his birth at FA 543 and his rule was SA 1698-TA 3021. His death is supposedly when he departed to Aman on September 29, 3021.

We know this information from these sources: The History of Middle-earth, Vol. 11: The War of the Jewels, V. as well as The Tale of Years and The Lord of the Rings, Appendix B: The Tale of Years (Chronology of the Westlands), The Chief Days from the Fall of Barad-dûr to the End of the Third Age.

È impossibile dirlo con esattezza perché è nato nell'anno della Prima Era circa 532 e aveva circa 50-60 anni alla fine della Prima Era. Ha vissuto tutti i 3441 anni della Seconda Era e poi tutti i 3021 anni della Terza Era. Gli eventi de Il Ritorno del Re sono accaduti nella Terza Era 3019-21. Doveva avere circa 6500 anni quando lasciò la Terra di Mezzo per le Terre Imperiture.