About FinanceTools

FinanceTools provides free, no-sign-up financial calculators and plain-English guides to help you understand loans, mortgages, and interest before you commit to borrowing money.

What we do

Every tool on this site runs entirely in your browser. Your numbers never leave your device, nothing is tracked, and no account is required. We focus on a small set of tools we can keep accurate and genuinely useful, rather than a sprawling collection of shallow widgets.

Our calculators

Our loan and mortgage calculators use the standard amortization formula used across the lending industry, so results match what lenders quote for fixed-rate loans. Each calculator is paired with a step-by-step guide that explains the math behind it.

Accuracy and limits

Calculators on this site are for estimation and education. Actual loan terms depend on your lender, credit profile, fees, and local rules. We recommend confirming final numbers with your lender or a licensed financial professional.