Free finance calculators
Work out loan payments, interest, savings and pay before you commit to a number.
Loan Calculator
Find your monthly payment, total interest and payoff schedule for any fixed-rate loan.
Mortgage Calculator
Estimate your full monthly house payment including tax, insurance, PMI and HOA.
Auto Loan Calculator
Estimate a car payment including down payment, trade-in, sales tax and dealer fees.
Compound Interest Calculator
See how savings and investments grow with compounding and regular contributions.
Simple Interest Calculator
Calculate simple interest and the total amount owed or earned with I = P × R × T.
Savings Goal Calculator
Find out how much to save each month to reach a goal by your deadline.
Credit Card Payoff Calculator
See how long a credit card balance takes to pay off — and what it really costs.
Inflation Calculator
See how inflation changes future prices and the buying power of your money.
CAGR Calculator
Find the compound annual growth rate between a starting and ending value.
Salary to Hourly Calculator
Convert annual salary to hourly pay (or hourly to salary) plus weekly and monthly amounts.
Make money decisions with real numbers
Most money questions come down to a few formulas: how an interest rate turns into a monthly payment, how compounding grows a balance over time, and how inflation shrinks what a dollar buys. These calculators run those formulas for you and show the full picture — the payment, the total interest, and how long it takes — so you can compare options side by side instead of guessing.
Which calculator should I use?
- Borrowing: use the loan calculator for personal loans, the mortgage calculator for a home (it adds property tax and insurance), and the auto loan calculator for a car with trade-in and sales tax.
- Debt payoff: the credit card payoff calculator shows how long a balance takes to clear and what it costs.
- Saving and investing: try the compound interest, savings goal and CAGR calculators.
- Pay and prices: convert pay with the salary to hourly calculator and adjust old prices with the inflation calculator.
These calculators give estimates for planning. Lenders may calculate fees, rounding and payment dates differently, so confirm final figures with your lender or a licensed financial professional.
Frequently asked questions
Are these finance calculators free?
Yes. Every calculator is free to use with no sign-up, and the numbers you enter stay in your browser.
How accurate are the loan payment results?
They use the standard amortization formula lenders use for fixed-rate loans. Real loans can differ slightly because of fees, rounding and the exact payment date.