Financial Calculators That Make Money Decisions Easier
Calculate mortgage payments, loan costs, investment growth, retirement savings, taxes, and more with simple, accurate tools.
Popular calculators
The nine tools people reach for most, each with a full breakdown of how the answer was reached.
Mortgage Calculator
Estimate your monthly mortgage payment and total interest.
CalculateMortgage Affordability Calculator
Find out how much house you could comfortably afford.
CalculateLoan Calculator
Calculate monthly payments, interest, and total loan cost.
CalculateCompound Interest Calculator
See how your money can grow over time.
CalculateInvestment Calculator
Estimate potential investment growth over time.
CalculateRetirement Calculator
Estimate how much you may need to retire.
CalculateDebt Payoff Calculator
Find out how long it could take to become debt-free.
CalculateSalary Calculator
Estimate take-home pay after taxes and deductions.
CalculateSavings Goal Calculator
Calculate how long it may take to reach your savings goal.
CalculateBrowse by category
Whatever the decision, start from the area it belongs to.
Mortgage
Work out what a home really costs each month.
Investing
See how compounding builds wealth over time.
Why use MoneyMetric?
Fast
Get answers in seconds. Everything recalculates the moment you change a number — no submit button, no waiting.
Simple
No complicated financial jargon. Plain language, sensible defaults and clear labels on every field.
Transparent
See exactly how your results are calculated. Every calculator states its formula and its assumptions.
Free
Use our calculators at no cost. No account, no paywall, and the numbers you enter never leave your browser.
Featured guides
Plain-English explanations of the mechanics behind the numbers.
How Mortgage Payments Work
A clear explanation of what makes up a monthly mortgage payment, how amortization shifts money from interest to principal, and why extra payments are worth most early on.
7 min readInvesting BasicsHow Compound Interest Works
Why interest on interest turns steady saving into significant sums — the formula, the rule of 72, and what fees and inflation quietly take back.
6 min readMortgage GuidesHow Much House Can I Afford?
How lenders decide what to approve, why the approval amount is usually more than you should spend, and the costs of ownership that no debt-to-income ratio accounts for.
8 min readCommon questions
Yes. Every calculator on MoneyMetric is free, with no account required and no limit on how often you use them. The site is supported by advertising rather than subscriptions.
No. Every calculation runs entirely in your browser using JavaScript. Your salary, balances and savings figures are never sent to our servers, because there is no calculation happening on a server at all.
The mathematics is exact: our calculators use the standard financial formulas — amortization, compound interest, annuity present and future value — and every formula is covered by automated tests. Accuracy in practice depends on your inputs and on assumptions like future rates of return, which nobody can know in advance. Each page states the assumptions it makes.
No. MoneyMetric provides educational tools and general information only. Results are estimates based on the figures you enter, and they are not professional financial, tax, investment, legal or accounting advice. Consult a qualified professional before making a financial decision.
The mortgage, loan, compound interest, investment, retirement, debt payoff and savings calculators use universal financial mathematics and work anywhere — just enter figures in your own currency. The salary calculator is US-specific, since it models federal and state tax rules.