Life expectancy by age · Male
Life expectancy of a 31-year-old male
A 31-year-old man in the United States has about 46.6 years of life left on average, which points to an average age at death of about 78. That figure comes from the Social Security Administration's 2023 period life table, used in the 2026 Social Security Trustees Report.
Average years left
46.6
Average age at death
78
Median age at death
81
Half live longer
Chance of dying this year
1 in 454
0.22% at age 31
Odds a 31-year-old man reaches each age
Life expectancy is only the average. The spread is wide: one in four 31-year-old men is expected to live past about 88, and one in ten past about 93. That is why retirement planners often plan for age 90 or later rather than the average.
| Reach age | Probability | Years from now |
|---|---|---|
| 50 | 94% | 19 |
| 60 | 87% | 29 |
| 65 | 82% | 34 |
| 70 | 74% | 39 |
| 75 | 65% | 44 |
| 80 | 52% | 49 |
What that time looks like
46.6 years is about 2,431 weeks, or 17,020 days. It also means roughly 46 more birthdays and 46 more summers on average. Enter an exact birth date in the life expectancy calculator for a result to the day.
31-year-old men compared with nearby ages
| Age | Male years left | Female years left | Chance of reaching 85 |
|---|---|---|---|
| 21 | 55.8 | 60.8 | 36% |
| 26 | 51.1 | 55.9 | 36% |
| 31 | 46.6 | 51.1 | 37% |
| 36 | 42.1 | 46.4 | 37% |
| 41 | 37.7 | 41.7 | 38% |
Each year you survive, the average age you can expect to reach goes up slightly, because you have already passed the risks of the year behind you.
Where 31-year-old men live longest
State life tables (NCHS, 2022) show real geographic gaps. At age 31, a man can expect the most remaining years in Utah and the fewest in West Virginia.
| Longest | Years left | Shortest | Years left |
|---|---|---|---|
| Utah | 47.8 | West Virginia | 40.6 |
| Hawaii | 47.6 | Mississippi | 41.3 |
| Massachusetts | 47.6 | Kentucky | 42.0 |
Source: SSA Office of the Chief Actuary, 2023 period life table. A period table assumes today's death rates stay fixed; if rates keep improving, actual lifespans will run longer. Probabilities are computed from the table's death rates. Statistical estimate only, not a medical prediction.
Questions
How long will a 31-year-old man live?
On average, about 46.6 more years, to roughly age 78, according to the SSA 2023 period life table. Half of 31-year-old men are expected to live past about age 81.
What are the chances a 31-year-old man lives to 90?
About 20%, based on current U.S. death rates at each age.
Do 31-year-old men live longer than 31-year-old women?
A 31-year-old woman has about 51.1 years left on average, more than the 46.6 years for a man of the same age.
Is this a prediction of when I will die?
No. It is a population average from an official life table. Health, habits, family history, income, and chance all move individual outcomes well above or below the average.