Assuming you are talking about the American singer Elvis Presley, he was 42 years old at his time of death. His period of living is 1935 to 1977.
Since Elvis Presley was born on January 8, 1935, and died on August 16, 1977.
Means that Elvis Presley died when he was 42 years, 7 months, 8 days excluding the end date.
Hope this helped! c:
