How old was Abraham when he died?
Abraham lived 175 years, from 1996 BC to 1821 BC.
Abraham died at 175. The chart places his birth at 1996 BC and his death at 1821 BC, on the Ussher chronology it follows. Called out of Ur; the covenant begins with him. (Gen. 12; 25:7)
See it in context
A date means more beside its neighbours. The chart puts this answer in place next to everything happening around it — biblical and world history across the same six thousand years.
Now see where it sits
Everything on this page has a place on one 45×37″ chart — and once you can see what came before and after it, it stops being a fact and starts being a story you can follow.