Free Finance Calculators
Accurate, transparent tools for the money decisions that matter — mortgages, loans, auto financing, investing, and taxes. Every calculator shows the formulas and sources behind the result, so you can trust the number.
Mortgage & Home
Free mortgage and home-financing calculators — estimate monthly payments, amortization, and how much house you can afford, with the formulas shown.
Mortgage Calculator
Free mortgage calculator. Estimate your monthly payment with principal, interest, taxes, insurance, and PMI, plus a full amortization schedule.
Mortgage Payoff Calculator
See how extra monthly payments shorten your mortgage and cut total interest. Enter your loan and an extra amount to find your new payoff date and interest saved.
Auto
Free auto-financing calculators — estimate your monthly car payment, total interest, and payoff from price, down payment, trade-in, tax, and APR.
Auto Loan Calculator
Free auto loan calculator. Estimate your monthly car payment from price, down payment, trade-in, sales tax, APR, and term, with total interest and payoff.
Car Affordability Calculator
Find out how much car you can afford. Enter your monthly budget, down payment, trade-in, tax, APR, and term to see the maximum vehicle price.
Investing & Retirement
Free investing and retirement calculators — project how savings and contributions grow over time with compound interest and transparent assumptions.
CAGR Calculator
Calculate the compound annual growth rate (CAGR) of an investment from its beginning value, ending value, and the number of years.
ROI Calculator
Calculate return on investment (ROI). Enter what you invested and what it is worth to see your net profit, ROI percentage, and annualized return.
Compound Interest Calculator
Free compound interest calculator. See how savings and investments grow with an initial amount, regular contributions, interest rate, and compounding frequency.
Savings
Free savings calculators — work out how much to set aside to hit a goal by a date, and what a CD or savings deposit grows to at a given APY.
Savings Goal Calculator
Find out how much to save each month to reach a goal by your target date, given a starting balance and interest rate. Includes a year-by-year projection.
CD Calculator
Calculate what a certificate of deposit (CD) is worth at maturity. Enter your deposit, APY, and term to see total interest earned and the final balance.
Loans & Debt
Free debt-payoff and loan calculators — compare the snowball and avalanche methods, see how long a credit card takes to clear, and price out a personal loan.
Debt Payoff Calculator
Compare the debt snowball and avalanche methods across all your debts. See which clears your balances faster and which saves the most interest.
Credit Card Payoff Calculator
See how long it takes to pay off a credit card and the total interest you’ll pay, based on your balance, APR, and monthly payment.
Personal Loan Calculator
Estimate the monthly payment, total interest, and total cost of a personal loan from the loan amount, interest rate (APR), and term.