How to use this calculator
Project retirement savings, solve contributions for a target, model retirement-income replacement, find a level monthly withdrawal, or estimate balance depletion. Income replacement grows current income to retirement and models inflation-growing monthly withdrawals after other retirement income. Accumulation and retirement return assumptions are separate.
- Enter retirement question, current age, retirement age and review the remaining options.
- Select Calculate or change a value to update the result. Read the result label and units before copying.
- Use Reset to restore the worked starting values.
Formula and method
Constant-return scenario only. Withdrawal mode uses nominal level end-of-month withdrawals; income-replacement mode increases withdrawals by modeled monthly inflation. Other retirement income is entered in retirement-date currency. No investment sequence risk, taxes, benefits eligibility or survival prediction is implied.
Worked example
With zero return, 20,000 plus 300 monthly for 35 years totals 146,000.
Questions about retirement savings calculator
What does the inflation-adjusted balance mean?
It discounts the future balance by the selected constant annual inflation rate to express approximate purchasing power in today’s terms. Separate modes model contributions, withdrawals, fund longevity, or income replacement. They use stated constant-rate assumptions and do not model market volatility or sequence risk.
What assumptions should I check?
Constant-return scenario only. Withdrawal mode uses nominal level end-of-month withdrawals; income-replacement mode increases withdrawals by modeled monthly inflation. Other retirement income is entered in retirement-date currency. No investment sequence risk, taxes, benefits eligibility or survival prediction is implied.
Are my inputs saved?
Calculations run in your browser. We store only tool IDs for favorites and recent tools. Sharing inputs in links is disabled for this category.
Financial tools model the assumptions shown above and do not predict actual returns or replace lender disclosures or professional advice. Amounts are currency-neutral: use the same currency for every amount. No exchange rate is applied.