US finance calculators
Calculators built on United States rules, in USD. Tax figures are for the 2026 tax year.
Loans
- Loan CalculatorMonthly payment, total interest and payoff date for any fixed-rate loan, with extra payments.
- Used Car Loan CalculatorMonthly payment and total cost for a used car loan, with trade-in, sales tax and fees included.
- Personal Loan Payoff CalculatorHow much paying extra each month, or a one-time lump sum, saves on a personal loan you already have.
- Auto Loan Refinance CalculatorWhether refinancing your car loan saves money, your new payment, and when the fees pay for themselves.
- Car Affordability CalculatorThe most car you can afford from a monthly budget, with trade-in, sales tax and fees included.
Debt
- Credit Card Payoff CalculatorHow long it takes to clear a credit card, the interest you pay, or the payment needed to be debt-free by a date.
- Debt-to-Income Ratio CalculatorFront-end and back-end DTI, what lenders look for, and how much debt to cut to reach a target ratio.
- Debt Consolidation CalculatorCompare paying off up to 10 debts as they are with one consolidation loan, including fees and break-even.
Retirement
Tax and pay
More US calculators are on the way. Each one ships only after its maths is tested.