Retire with the S&P 500

A straightforward retirement planning app that shows how investing in the S&P 500 could fund your future. Get clear, data-driven projections, adjust assumptions in real time, and build a plan you can actually follow. Ideal for beginners, DIY investors, and the FIRE community. Core features: • S&P 500–based growth projections with adjustable returns, inflation, and fees • Contribution planner for 401(k) and IRA with employer match and tax assumptions • Withdrawal planning with safe-withdrawal estimates and side-by-side scenario comparisons Keywords: retirement calculator, S&P 500, investment simulator, compound growth, 401(k), IRA, financial planning app