RetireSure Simulator

Will your money last through retirement?
RetireSure uses real historical market data to show whether your retirement plan actually works — not just on average, but in good and bad markets.
Run 10,000 Monte Carlo simulations based on 76 years of U.S. market returns (1950–2025) and see your true probability of success.
Understand your plan clearly:
• See your chance of running out of money
• Test worst-case market scenarios
• Find your safe annual spending level
• Model different spending by age range — for SS bridge gap planning
• Compare different retirement ages and strategies
• Adjust inputs instantly and see results in real time
Most retirement calculators assume smooth, average returns. Real markets don't behave that way.
RetireSure stress-tests your plan against real historical conditions — including crashes, inflation spikes, and sequence-of-returns risk — so you can make decisions with confidence.
Built for serious retirement planning:
• No subscriptions — one-time purchase
• Outcome range — median, worst 10%, best 10% scenarios
• Clean, simple interface
• Fast results in seconds
• Based on real market history, not assumptions
Know where you stand before you retire and how it's going during retirement