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Loan Calculators · United States
Work out the monthly payment, total interest and payoff date for a personal, auto or student loan, and see how extra payments change them.
With auto loan extras on, enter the vehicle price here.
Extra goes straight to principal.
Rate depends on your state and county. Financed with the loan here.
Enter your values and press Calculate loan
Monthly payment
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How it works
Each payment covers that month's interest first and sends the rest to principal. As the balance falls, more of every payment goes to principal.
Type the amount, APR and term in months or years. For a car, turn on the auto extras to add down payment, trade-in and sales tax.
The cards compare minimum payments with extra payments, showing payoff time and interest in each case.
Open the amortization schedule to see principal, interest and balance for every month.
The calculator assumes a fixed rate, equal monthly payments and no prepayment penalty. Interest is computed monthly; some auto and student loans use simple daily interest, which can make real numbers differ by a few dollars. Fees such as origination, title, registration and documentation charges are not included. Sales tax rules vary by state, and some states tax only the difference after a trade-in, so enter the down payment and trade-in net of any tax credit. For federal student loans, income-driven plans and deferment are not modeled.
Yes. Extra payments reduce principal immediately, so every later month charges less interest. The savings are larger when the rate is higher and the extra payment starts earlier.
APR is the yearly cost of borrowing, including some lender fees, expressed as a percentage. Use the APR from your loan offer for the most accurate result.
A longer term lowers the payment but increases total interest and can leave you owing more than the car is worth for longer. Compare terms using the total interest figure.
Turn on auto loan extras and enter your state's sales tax. For other fees, add them to the vehicle price if they will be financed.
Yes, for a fixed-rate standard repayment. Turn off auto loan extras, enter the balance, rate and term, and use the extra payment box to model paying ahead.
Estimates for education and planning only. This is not tax, legal or investment advice; check IRS.gov or a tax professional for your situation. Sources: standard loan amortization formula.
Last updated: November 2, 2026
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