How AI describes FireCalc

FIRECalc is a retirement calculator that tests whether a given withdrawal plan would have lasted through historical market conditions since 1871 to estimate its likelihood of success. Users enter spending, starting portfolio balance, and time horizon, and can customize inputs such as Social Security, pensions, asset allocation, fees, and other adjustments; the tool then shows results across all possible starting years rather than relying on averages. It offers varied spending models and portfolio options and preserves data as you navigate different tabs to explore how changes affect outcomes.