simpleFIRE: FIRE Calculator

NEW: HISTORICAL Backtest your plan the way the Trinity study tested the 4% rule. Switch any calculator to Historical and it runs your plan through every period of real market history, with the returns your stocks and bonds mix actually earned and the inflation each year actually brought. - Projection: what you'll have, at the chance you choose. - Time to FI: when you reach your target, and the chance of getting there by each year. - Drawdown: how long your money lasts, and the chance it lasts through your planning horizon. ALSO NEW - Monte Carlo is faster: its final answer updates as you move a slider. - Withdrawals work like the classic safe-withdrawal studies: take them at the start or end of each period, each one keeping pace with inflation. - Every setting sits next to the result it changes: tap the chance, planning horizon or withdrawal rate right on the result card. - Plan with any chance from 1% to 100%. - Methods & Data in Settings explains every method and data source. - A cleaner look with a new teal accent and app icon. - Your FI target is always in today's money and grows with inflation.