See the probability your portfolio lasts through retirement using random market return simulations.
A Monte Carlo simulation runs hundreds or thousands of possible market paths. Each path uses random annual returns (based on your expected return and volatility). Your portfolio is drawn down by your chosen withdrawal each year. The success rate is the percentage of those paths where you still have money left at the end. No simulation can predict the real future—this tool shows you the odds under your assumptions.
Tip: Use a conservative expected return (e.g. 5–6%) and include volatility (e.g. 10–15% standard deviation) so the success rate reflects sequence-of-returns risk.