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 75+ 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.
Sonnet 4.6Extended