My Retirement Simulator

Use this free Retirement Calculator to model your portfolio with historical S&P 500 data and multiple withdrawal strategies. Compare the 4% Rule, Guyton-Klinger Guardrails, and Variable Percentage Withdrawal to find the approach that best fits your risk tolerance. Calculate sustainable retirement income, portfolio longevity, and real-vs-nominal withdrawals in minutes.

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Longevity ? How long the portfolio lasted. Shows if it survived the full simulation period or depleted early
End Portfolio ? Final portfolio value at the end of the simulation period
Total Withdrawals ? Sum of all withdrawals taken throughout the entire simulation period
Avg Withdrawal ? Average annual withdrawal amount across all years in the simulation
Max Drawdown ? Largest percentage decline from peak portfolio value to trough during the simulation
Worst Year ? Year with the lowest market return during the simulation period
Best Decade ? Highest 10-year compound annual growth rate (CAGR) during the simulation period

Withdrawal Rates ? Withdrawal rates as a percentage of portfolio value: initial rate at start, median across all years, maximum rate reached, and final year rate

Initial / Median / Max / Final

Sequence Risk ? Risk from poor market returns early in retirement. Compares first decade average returns vs overall period to assess if bad timing could deplete portfolio faster

Peak Burn Rate ? The highest withdrawal amount taken in any single year during the simulation period

Recovery Time ? Number of years it took for the portfolio to recover to within 99% of its peak after experiencing the worst drawdown

Years to recover from worst drawdown

Safe Zone Years ? Number of years the portfolio remained above 80% of its previous peak. Higher percentages indicate more stability with fewer deep drawdowns.

Inflation Impact ? Average annual inflation rate (CAGR) over the simulation period and comparison of real vs nominal total withdrawals

Total Fees/Tax Drag ? Cumulative dollar amount lost to fees, taxes, and other portfolio costs over the entire simulation period

Cumulative cost over simulation
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Annual Withdrawals
YearAgePortfolioNote
Run simulation to see milestones
Adjust Inputs
$750K Portfolio
4.0% Rate
50 Years

About This Retirement Simulator

This free Retirement Calculator models portfolio longevity using historical market returns and research-backed withdrawal strategies. Simulate how your retirement portfolio would have performed across real historical periods — including recessions, crashes, and bull markets.