He was in his eighties. Poor data on birth and death dates from 2500 years ago makes it hard to be more exact.
It is believed that the Buddha died at 80 yrs old by eating rotten food offered to him in charity.
Siddhartha Gautama, the Buddha's dates of birth and death are somewhat uncertain Some traditions say between 486 and 483 BCE, others between 411 and 400 BCE.
I think 35 in (dog years),,,,, 5 in (human years)
Ezra was about 80 years old and died around 440 B.C.
He died at age 73 of a heart attack.