The average new-car payment in the United States was $745 a month in the fourth quarter of 2024, according to Experian’s State of the Automotive Finance Market report. This calculator estimates a fixed-rate monthly payment from the amount financed, APR, and loan term; the national average is a benchmark, not a prediction of an individual buyer’s payment.
Formula
The calculator uses the standard fixed-payment loan formula. It assumes equal monthly payments and a constant interest rate throughout the term:
Monthly payment = P × r ÷ [1 − (1 + r)−n]
- P is the amount financed, in dollars.
- r is the monthly interest rate, calculated as APR ÷ 1,200. APR is entered as a percent per year.
- n is the number of monthly payments, calculated as years × 12.
The payment is rounded to the nearest cent. Total interest is estimated as the rounded monthly payment multiplied by the number of payments, minus the amount financed. Because actual payment schedules can include a final adjustment, this is an estimate.
Worked Example
Using the calculator’s default inputs: $20,000 financed, 8% APR, and 5 years.
- Convert the APR to a monthly rate: 8 ÷ 1,200 = 0.0066667.
- Convert the term to payments: 5 × 12 = 60 months.
- Apply the payment formula: $20,000 × 0.0066667 ÷ [1 − (1.0066667)−60].
- Round to cents: the estimated monthly payment is $405.53.
- Use the rounded payment to estimate interest: $405.53 × 60 − $20,000 = $4,331.80.
Assumptions
- The interest rate stays fixed for the full loan term.
- Payments are equal, made monthly, with the first payment one month after borrowing.
- Interest compounds monthly at APR ÷ 12.
- The calculation excludes taxes, registration, insurance, fees, add-ons, and any down payment unless reflected in the amount financed.
What the US Average Includes
The $745 figure describes an average monthly payment on financed new vehicles in Experian’s fourth-quarter 2024 data. It is a snapshot of reported auto financing, not the price of a car, a required payment, or a measure of what every buyer pays. The average can change from quarter to quarter as vehicle prices, loan sizes, terms, and borrowing costs change.
Payment averages also hide a wide range of individual transactions. A borrower financing a smaller balance over a shorter term may pay less per month, while a larger balance or higher APR can raise the payment. Averages do not tell you whether a buyer put money down, traded in a vehicle, rolled an earlier balance into the loan, or chose a particular term.
Why Individual Payments Differ
Three inputs drive this calculator’s result: the amount financed, APR, and loan length. The amount financed is the balance borrowed, which can differ from the vehicle’s advertised price after a down payment, trade-in, taxes, fees, or optional products. The APR is the annualized borrowing cost entered for the estimate; use the figure supplied for the specific financing offer rather than treating an example rate as a quote.
- Amount financed: Borrowing more raises the payment when the APR and term remain unchanged.
- APR: A higher entered rate increases the payment and usually increases total interest.
- Term: Spreading repayment over more months generally reduces the monthly payment but can increase the total interest paid.
For example, a $30,000 balance at the same APR and term will produce a higher payment than a $20,000 balance. Comparing two offers therefore requires holding the inputs constant—or examining each offer’s actual amount, APR, and term—not comparing monthly figures alone.
Payment Versus Total Car Cost
A monthly loan payment is only one part of owning and operating a car. It does not include ongoing costs such as insurance, fuel or electricity, maintenance, parking, and registration. A lender’s quoted payment may also differ from this estimate if the financed balance, payment dates, rate conventions, or fees differ.
Focusing only on the monthly amount can obscure the total repayment. In the example above, 60 payments of $405.53 total $24,331.80, of which $4,331.80 is estimated interest. A longer term could lower the scheduled monthly payment while increasing the number of payments and potentially the total interest. Review the amount financed, total of payments, and full loan disclosure alongside the monthly figure.
Using the Calculator Carefully
Enter the amount actually being financed rather than the vehicle’s sticker price if those amounts differ. Enter APR as a percentage per year—for example, enter 8 for 8%, not 0.08—and enter the term in years. The calculator converts the term to months and the APR to a monthly rate.
This is a mathematical estimate, not a quote. It models a conventional, fully amortizing loan with a fixed rate and equal monthly payments. It does not model a changing rate, irregular payment schedule, balloon payment, or a separate fee financed at a different time. Ask for the lender’s written payment schedule and compare its assumptions with the calculator’s inputs.
Frequently Asked Questions
What is the average new-car payment in the US?
Experian reported an average monthly payment of $745 for financed new vehicles in the fourth quarter of 2024. Averages vary by reporting period and do not predict an individual payment.
Does the average include used cars?
No. The cited $745 figure is for new-vehicle financing. Used-car payments are tracked separately and should not be treated as part of that new-car average.
Why can my payment be higher than the average?
Your financed balance, APR, and loan term may differ from those represented in the average. The average also does not describe every financing arrangement or buyer’s circumstances.
Does a lower monthly payment mean I pay less overall?
Not necessarily. A longer term can spread payments out and lower each monthly amount, but may increase total interest. Compare total payments as well as the monthly figure.
Does this estimate include insurance and taxes?
No. It estimates principal and interest on the amount financed. Taxes and fees are excluded unless included in that balance; insurance and vehicle operating costs are not included.
This result is an estimate, and the lender’s disclosure gives the exact figures.
Related
Formula used
in p | Loan amount | $ | 20000 | 1 | 100000000 in apr | Interest rate (APR) | % | 8 | 0.01 | 100 in yrs | Loan term | years | 5 | 0.0833 | 50 out pmt | Monthly payment | $ | round(p * (apr / 1200) / (1 - (1 + apr / 1200) ^ -(yrs * 12)), 2) | 2 out int | Total interest | $ | pmt * yrs * 12 - p | 2
Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work
Method: the standard loan formula for this calculation, fixed rate and monthly compounding unless stated, rounded as each result states. Not financial advice; no lender, rate or product is recommended. See formulas and assumptions, the disclaimer or report an error.
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