Life expectancy by age · Female
Life expectancy of a 1-year-old female
A 1-year-old girl in the United States has about 80.5 years of life left on average, which points to an average age at death of about 81. That figure comes from the Social Security Administration's 2023 period life table, used in the 2026 Social Security Trustees Report.
Average years left
80.5
Average age at death
81
Median age at death
85
Half live longer
Chance of dying this year
1 in 2,551
0.04% at age 1
Odds a 1-year-old girl reaches each age
Life expectancy is only the average. The spread is wide: one in four 1-year-old women is expected to live past about 91, and one in ten past about 96. That is why retirement planners often plan for age 90 or later rather than the average.
| Reach age | Probability | Years from now |
|---|---|---|
| 50 | 96% | 49 |
| 60 | 92% | 59 |
| 65 | 88% | 64 |
| 70 | 83% | 69 |
| 75 | 76% | 74 |
| 80 | 65% | 79 |
What that time looks like
80.5 years is about 4,199 weeks, or 29,395 days. It also means roughly 80 more birthdays and 80 more summers on average. Enter an exact birth date in the life expectancy calculator for a result to the day.
1-year-old women compared with nearby ages
| Age | Female years left | Male years left | Chance of reaching 85 |
|---|---|---|---|
| 1 | 80.5 | 75.3 | 50% |
| 6 | 75.6 | 70.4 | 50% |
| 11 | 70.6 | 65.4 | 50% |
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 1-year-old women live longest
State life tables (NCHS, 2022) show real geographic gaps. At age 1, a girl can expect the most remaining years in Hawaii and the fewest in West Virginia.
| Longest | Years left | Shortest | Years left |
|---|---|---|---|
| Hawaii | 82.5 | West Virginia | 74.7 |
| New York | 81.5 | Mississippi | 75.3 |
| California | 81.4 | Kentucky | 75.6 |
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 1-year-old girl live?
On average, about 80.5 more years, to roughly age 81, according to the SSA 2023 period life table. Half of 1-year-old women are expected to live past about age 85.
What are the chances a 1-year-old girl lives to 90?
About 31%, based on current U.S. death rates at each age.
Do 1-year-old women live longer than 1-year-old men?
A 1-year-old boy has about 75.3 years left on average, less than the 80.5 years for a girl 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.