Free Finance Calculators
Seven free calculators for the money questions people actually Google: what a mortgage costs, what savings grow to, and what a paycheck is really worth after tax. Change any number and the answer updates instantly. No login, no account, no data leaves your browser.
Mortgage Calculator
Monthly payment with taxes, insurance, HOA and PMI, total interest, payoff date and a full amortisation table.
Open calculator →Compound Interest Calculator
See what an initial investment plus monthly contributions grows to, with total interest earned year by year.
Open calculator →Paycheck Calculator
Turn a gross annual salary into net pay per paycheck, after retirement, health insurance, tax and FICA.
Open calculator →Loan CalculatorComing soon
Monthly payment, total interest and payoff schedule for personal and auto loans.
Coming soonRetirement CalculatorComing soon
How much you need to save, and when the balance is enough to stop working.
Coming soonRefinance CalculatorComing soon
Check whether a lower mortgage rate actually pays, after closing costs and the new term.
Coming soonInterest CalculatorComing soon
Simple and compound interest on a lump sum or a loan, over any period.
Coming soonHow it works
Every calculator on this site runs entirely in your browser. Nothing you type is sent to a server, stored, or sold. Each tool shows its formula and a worked example, so you can check the maths yourself — and each result is an estimate, not a quote from a lender, employer or financial adviser.
Start with the mortgage calculator if you are buying a home, the compound interest calculator if you are saving, or the paycheck calculator if you want to know what a salary offer is actually worth per paycheck.
Estimates only — not financial advice
Results are estimates based on the inputs you enter, using the formulas stated on each tool’s page. Tax rates, interest rates, fees and your personal circumstances will differ in real life. LootLoaf does not collect or store anything you type. Pages reviewed 11 November 2026.