FinCalc

¿Qué es FinCalc?

FinCalc is a collection of 17 free financial calculators: compound interest, mortgage, retirement/FIRE, debt payoff, rent vs buy, and more. Results update in real time as you type, with interactive charts and year-by-year breakdowns. No signup, no paywall, no data collection: everything runs in your browser. Each calculator explains the exact formula it uses, so you can verify the math.