Retirement Calculator
Estimate how current savings, future contributions, inflation, and a planning withdrawal rate shape the retirement balance and income path you may need.
Last updated: April 16, 2026
Financial planning notice
Finance tools are intended for planning and comparison, not as legal, tax, investment, or accounting advice.
Verify assumptions, rates, fees, and statutory rules before using the output in a real decision.
Interactive tool
The live form, validation, and result state for Retirement Calculator load after the page scripts run. The content below summarizes how the tool works and links to related pages in the catalog.
Project retirement savings growth using current balance, monthly contributions, income-replacement targets, inflation, contribution increases, and a planning withdrawal rate.
How to use Retirement Calculator
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1
Enter your inputs into the Retirement Calculator form.
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Adjust optional settings so the scenario matches your real-world case.
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Review the result, then tweak one variable at a time to compare outcomes.
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Keep your best scenario as a baseline for future decisions.
Financial calculators provide directional estimates. Confirm decisions with current lender, tax, or regulatory details.
Best use cases
How this estimate works
The calculator projects your savings forward using current balance, monthly contributions, expected growth, and optional annual contribution increases. It then compares the projected balance with the amount your target retirement income may require under the withdrawal-rate assumption you choose.
That side-by-side view is useful because retirement planning is not only about ending balance. It is about whether that balance plausibly supports the income you want later.
Use realistic assumptions
Contribution amount, inflation, and retirement age are all levers you can test directly. Return assumptions matter too, but the safest workflow is to start with a realistic baseline rather than a best-case market result.
If the projection falls short, increase contributions or test a later retirement age before assuming a higher return will solve the gap.
- Run a baseline case with your actual current savings and contribution rate.
- Test at least one conservative return assumption.
- Review inflation-adjusted results before treating the future balance as spending power.
Common retirement planning mistakes
Many retirement estimates go wrong because savers focus only on the future balance and skip the income question. Others assume they will save more later without testing whether current cash flow supports that change.
This tool is most valuable when you use it to compare grounded scenarios rather than to validate a hopeful assumption.
- Using an aggressive return assumption without testing a conservative case.
- Ignoring inflation and reading nominal balances as if they were future spending power.
- Looking at one balance target without comparing it to a target retirement income.
When to use this vs related tools
- Use Retirement Calculator when you want to plan toward a target income or target nest egg over decades, not just measure raw compounding on one account.
- Use 401(k) Calculator when employer match, salary growth, and payroll deferral rates are the main drivers of the decision.
- Use Savings Goal Calculator when the question is reaching a fixed short-term or medium-term target by a deadline rather than funding retirement income.
- Use APR Calculator alongside this page when borrowing costs or debt payoff tradeoffs are affecting how much you can realistically save.
Worked example
Retirement savings estimate example
A realistic retirement estimate starts with current savings, a sustainable monthly contribution, and an income target that reflects the spending level you hope the portfolio can support.
- Enter current age, retirement age, and the balance already saved.
- Use the monthly contribution you can maintain under your current budget, not a future ideal.
- Compare the projected balance and the target-income gap before making one-variable changes.
This calculator is best used as a retirement income planning tool, not just a future-balance generator.
Scenario playbook
Use these scenario paths to turn one-off estimates into a clearer workflow.
Mid-career saver checking whether the plan is on track
A saver in their 30s or 40s can test whether current monthly saving and an expected retirement age are enough to support a target retirement income.
- Start with the actual current balance and recurring monthly contribution.
- Keep the income-replacement target fixed while testing contribution changes.
- Use the gap view to decide whether the better next move is saving more, retiring later, or both.
Late starter deciding which lever matters most
A saver who feels behind can compare a higher monthly contribution against a later retirement age instead of relying on a more optimistic market assumption.
- Run the current plan first so the funding gap is visible.
- Increase contributions one step at a time before testing a later retirement age.
- Check whether payroll or tax changes are needed to free up the higher savings amount.
Methodology
- The calculator projects savings growth monthly from your current balance, monthly contribution, expected annual return, and annual contribution increase.
- It estimates a target balance by dividing your desired retirement income by the withdrawal rate you choose.
- Inflation-adjusted output is included to show the purchasing power of the projected balance rather than only the future nominal dollar amount.
Related guides
Read the higher-context pages that support this tool.
Retirement Calculator Guide
Learn how to use a retirement calculator, choose realistic savings assumptions, and interpret income-gap projections before making long-term planning decisions.
401(k) Contribution Guide
Learn how employee deferrals, employer match, salary growth, and contribution strategy affect long-term 401(k) projections.
How to Estimate Take-Home Pay from Salary or Hourly Wages
Learn how to estimate take-home pay from salary or hourly wages using withholding, payroll taxes, deductions, and pay frequency.
How to Estimate Your Taxes Before Filing Season
Learn how to estimate taxes before filing season by separating federal, state, and payroll taxes and understanding where estimates can differ.
How Small Monthly Contributions Can Compound Over Time
Learn how time, rate of return, and monthly contributions work together in compound growth, with simple examples and an inflation note.
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