Inputs
Retirement
Project retirement savings from your current age, target retirement age, savings, and contributions.
Result
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Result explanation
How to read this result
Visualization
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Retirement Calculator
Project retirement savings from your current age, target retirement age, savings, and contributions.
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Guide
Using the Retirement Calculator
What the calculator does
Use this page to project retirement savings from your current age, target retirement age, savings, and contributions.
It is most helpful when you are modeling a practical financial choice and want to test several assumptions quickly.
Formula and calculation explanation
Enter Current age, Retirement age, Current savings, Monthly contribution, and Annual return. Those values let the page project retirement savings from your current age, target retirement age, savings, and contributions.
These calculators compound the starting balance forward and then add recurring monthly contributions as an ordinary annuity.
Future value with contributions
\[FV = PV(1+i)^n + PMT \cdot \frac{(1+i)^n - 1}{i}\]
PV is the starting amount, PMT is the recurring contribution, i is the periodic rate, and n is the number of periods.
Real-world examples
- Real-world setup: try current age 32, retirement age 65, current savings 45,000, and monthly contribution 650 when you want to move from a rough question to a concrete scenario.
- What-if example: rerun the same setup with a different current age to compare how much the headline answer moves.
Step-by-step walkthrough
- Enter Current age, Retirement age, Current savings, Monthly contribution, and Annual return.
- Check that each value is in the units named by the field labels.
- Click Calculate Retirement. The calculator applies the method shown above and updates the answer instantly.
- Review the retirement savings and the supporting values for years to grow and total contributed, then adjust one input at a time to compare scenarios cleanly.
FAQs
What does the retirement savings result mean?
The main result shown here is retirement savings. The calculator also returns years to grow and total contributed so you can review the most useful supporting numbers at the same time.
How should I enter the inputs?
Fields marked with (%) expect percentage-style inputs such as 6.5 for 6.5%, unless the field explicitly says otherwise.
Why might this calculator differ from another tool?
Other tools may include extra assumptions such as taxes, insurance, fees, compounding schedules, or rounding rules. This page focuses on the inputs and formulas shown on the screen.
Common mistakes
- Entering a decimal such as 0.07 when the field expects a percent value such as 7.
- Mixing monthly amounts with annual rates or terms without checking the time basis carefully.
- Changing several inputs at once, which makes it harder to see which variable actually moved the result.
Edge cases
- A 0% rate, ratio, or growth value often simplifies the formula into a direct no-change or principal-only case.
- Very short terms, very high rates, or unusually small payments can create results that look extreme but are mathematically consistent.
- If a required field is left blank or contains an unsupported value, the calculator will not return a useful result until the input is corrected.
Interpretation of results
The main result shown here is retirement savings. The calculator also returns years to grow and total contributed so you can review the most useful supporting numbers at the same time.
- Treat the primary dollar figure as the headline answer, then use the supporting amounts to understand tradeoffs such as interest, savings, profit, or total cost.
- The supporting metrics help you understand why the headline result looks the way it does and which tradeoffs sit behind it.
- When you compare scenarios, change one key input at a time so you can tie each output change back to a specific assumption.
Related concepts and calculators
Related ideas for this page include rates, time value of money, cash flow, affordability, tradeoffs, and compounding.