Calculation method
Convert a nominal monthly-compounded annual rate to an effective annual return when selected. Grow the balance annually and apply annual contributions at the selected start or end of each year.
Retirement · General formulas
Retirement Savings Calculator
Project retirement savings from a current balance and yearly contributions. Use the example values or enter your own numbers to explore an estimate.
Currency formatting only—not an exchange-rate conversion. No country-specific tax or government rules are applied.
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Enter your details to see a personalized calculation, a simple projection, and the assumptions behind it.
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The PDF includes active input values and option labels, results, sources, model assumptions, and the schedule when available. Schedule periods follow the model: years, months, or actual payments.
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Share assumptions, never dollar amounts
Links include eligible rate, term or frequency assumptions only. Dollar amounts are never included. Recipients must enter their own amounts; the link will not reproduce your full financial scenario.
Assumptions & limits
- No tax treatment or government benefit formulas are included.
- Constant annual return; no inflation adjustment.
- Basis: User-entered values.
- Basis: Standard fixed-payment and time-value-of-money formulas.
Source/rule review year: Not applicable — general mathematical model.
Compare like with like
A nominal annual rate is not the same as an effective annual return. With nominal rate r compounded m times per year, the equivalent effective annual rate is (1 + r / m)m − 1. For example, 6% nominal compounded monthly is about 6.17% effective for a year before fees, taxes, or inflation.
Contribution and withdrawal timing also matters: end-of-month deposits miss that month’s growth, while a beginning-of-period deposit earns for the full period. Compare tools only after matching the rate convention, compounding period, contribution timing, and fees; a displayed equivalent does not make distinct models identical.
Read the compound-interest guide