Estimate how long your retirement savings may last based on your current balance, monthly contributions, expected return, retirement spending, and retirement timeline.
Retirement Longevity Calculator
See how long your savings will last in retirement.
What Is a Retirement Savings Longevity Calculator?
This calculator helps answer a common retirement question:
“How long could my savings last?”
It considers the relationship between your savings, investment growth, contributions, and spending.
Inputs
The calculator uses:
- Current retirement savings
- Monthly contribution
- Expected annual return
- Annual retirement spending
- Current age
- Retirement age
How to Use It
Enter your current savings and monthly contribution.
Set your expected annual return and annual retirement spending.
Then enter your current age and retirement age.
Click Calculate Longevity.
Why Spending Matters
A retirement portfolio is affected by both investment performance and withdrawals.
For example, two people with identical savings may have very different outcomes if one spends significantly more each year.
Why Return Assumptions Matter
A higher assumed return can make the projected portfolio last longer, while lower returns can produce a very different outcome.
However, actual returns are not constant, so testing multiple scenarios is important.
Example Scenario
Suppose someone has $250,000 saved, contributes $500 per month, expects a 6% annual return, and plans to spend $40,000 per year in retirement.
The calculator can use these assumptions to model the projected path of the savings.
Important Limitation
This is a planning estimate. Real retirement outcomes can be affected by market volatility, inflation, taxes, fees, healthcare expenses, unexpected spending, and changes in retirement income.