Free Finance Calculators

Simple, fast tools to help you understand your money — from saving and investing to loans and debt payoff.

All calculators

Popular
📈
Compound Interest Calculator
See how your investments grow over time with the power of compounding. Adjust principal, contributions, rate, and time horizon.
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Loan Payoff Calculator
Find your monthly payment, total interest cost, and full amortization schedule for any loan — car, personal, student, or otherwise.
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Mortgage Affordability Calculator
Estimate how much house you can afford based on your income, debts, down payment, and local interest rates.
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Credit Card Interest Calculator
See how long it will take to pay off your credit card balance and how much interest you'll pay — or find the payment needed to be debt-free by a target date.
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Free, always
No sign-up, no paywalls. All tools are completely free to use.
No data stored
All calculations happen in your browser. We never store your financial inputs.
Interactive & instant
Sliders and inputs update results in real time — no page reloads needed.
Educational focus
Clear charts and breakdowns help you understand the numbers, not just see them.