General-purpose estimates
Loan calculators use fixed-payment formulas with monthly periods. Savings and growth calculators use the return, compounding and contribution timing selected or stated on the tool. Results are estimates, not promises.
Show the math. State the assumptions.
Each calculator uses a documented formula and displays important limits alongside its estimate.
Inputs and privacy
Calculations run in your browser. Your inputs are not sent to our server or stored by this website.
Country-specific rules
Tax rates, contribution limits, government benefits, and legal rules change over time. We do not publish country-specific calculations until the formula, applicable year, and authoritative sources can be verified.
Corrections
Review the methodology and assumptions shown on each calculator. If you find an issue, use the contact page once official contact details are available.