Vehicle financing

Auto Loan Calculator

Estimate the monthly payment and total financing cost after down payment, trade-in, sales tax and fees.

Tax treatment of trade-ins and financed fees varies by location and transaction.

Compare the full transaction

A lower payment can result from a longer loan rather than a lower vehicle price. Compare amount financed, APR, term, total interest and total repayment.

Before signing

  • Separate the vehicle price from the financing discussion
  • Confirm whether optional products are included
  • Check the trade-in payoff and net equity
  • Budget for insurance, fuel, maintenance and registration

Educational estimate only; dealer, lender and government calculations can differ.

Written and maintained by Ryan V. Rhodes — Founder & Editor, IQlatorEducational information

How to evaluate an auto loan beyond the monthly payment

A vehicle payment is determined by the amount financed, the annual percentage rate and the number of monthly payments. A smaller payment is not automatically a cheaper loan: extending the term can reduce the monthly bill while increasing total interest and the time the vehicle remains encumbered.

How to use this page

Enter the negotiated vehicle price rather than the sticker price. Subtract cash down and trade equity, then add taxes and financed fees when those amounts are part of the loan. The calculator applies the standard fixed-payment amortization formula. Compare the resulting payment with total interest and total paid.

Practical exampleOn a $32,000 amount financed, a higher APR or longer term changes more than the payment. Test 48, 60 and 72 months with the same principal so the cost of extra time is visible.

Inputs to verify

  • Confirm whether the dealer quote includes tax, title, registration and add-on products.
  • Compare the lender APR—not only the stated interest rate or payment.
  • Leave room in the budget for insurance, fuel, maintenance and repairs.

Common questions

Should I use the dealer payment quote?

Use the complete amount financed, APR and term from the written offer. A payment alone does not reveal financed fees or total interest.

Does a larger down payment always help?

It normally reduces the principal and interest, but keep an emergency reserve and avoid putting more down than your broader budget can support.

Read the deal as a total-cost decision

Vehicle price, trade-in value, down payment, taxes, fees, APR and term all affect the amount financed. A 72- or 84-month loan may make a vehicle appear more affordable month to month while keeping you in debt longer and increasing interest expense.

Sources and consumer guidance

This calculator is an educational estimate. Dealer contracts, taxes, rebates, fees and lender disclosures determine the actual transaction.

Auto loan cost breakdown and amortization

The chart separates financed principal from estimated interest. The schedule shows how the balance declines each month.

Amount financed $32,600.00 (85.2%)Interest $5,671.39 (14.8%)

Monthly amortization schedule

MonthPaymentPrincipalInterestBalance
1$637.86$461.27$176.58$32,138.73
2$637.86$463.77$174.08$31,674.96
3$637.86$466.28$171.57$31,208.67
4$637.86$468.81$169.05$30,739.86
5$637.86$471.35$166.51$30,268.51
6$637.86$473.90$163.95$29,794.61
7$637.86$476.47$161.39$29,318.14
8$637.86$479.05$158.81$28,839.09
9$637.86$481.64$156.21$28,357.45
10$637.86$484.25$153.60$27,873.19
11$637.86$486.88$150.98$27,386.32
12$637.86$489.51$148.34$26,896.80
13$637.86$492.17$145.69$26,404.64
14$637.86$494.83$143.03$25,909.81
15$637.86$497.51$140.34$25,412.30
16$637.86$500.21$137.65$24,912.09
17$637.86$502.92$134.94$24,409.17
18$637.86$505.64$132.22$23,903.53
19$637.86$508.38$129.48$23,395.15
20$637.86$511.13$126.72$22,884.02
21$637.86$513.90$123.96$22,370.12
22$637.86$516.68$121.17$21,853.43
23$637.86$519.48$118.37$21,333.95
24$637.86$522.30$115.56$20,811.65
25$637.86$525.13$112.73$20,286.53
26$637.86$527.97$109.89$19,758.56
27$637.86$530.83$107.03$19,227.72
28$637.86$533.71$104.15$18,694.02
29$637.86$536.60$101.26$18,157.42
30$637.86$539.50$98.35$17,617.92
31$637.86$542.43$95.43$17,075.49
32$637.86$545.36$92.49$16,530.13
33$637.86$548.32$89.54$15,981.81
34$637.86$551.29$86.57$15,430.52
35$637.86$554.27$83.58$14,876.25
36$637.86$557.28$80.58$14,318.97
37$637.86$560.30$77.56$13,758.67
38$637.86$563.33$74.53$13,195.34
39$637.86$566.38$71.47$12,628.96
40$637.86$569.45$68.41$12,059.51
41$637.86$572.53$65.32$11,486.98
42$637.86$575.64$62.22$10,911.34
43$637.86$578.75$59.10$10,332.59
44$637.86$581.89$55.97$9,750.70
45$637.86$585.04$52.82$9,165.66
46$637.86$588.21$49.65$8,577.45
47$637.86$591.40$46.46$7,986.06
48$637.86$594.60$43.26$7,391.46
49$637.86$597.82$40.04$6,793.64
50$637.86$601.06$36.80$6,192.58
51$637.86$604.31$33.54$5,588.27
52$637.86$607.59$30.27$4,980.68
53$637.86$610.88$26.98$4,369.80
54$637.86$614.19$23.67$3,755.62
55$637.86$617.51$20.34$3,138.10
56$637.86$620.86$17.00$2,517.25
57$637.86$624.22$13.64$1,893.02
58$637.86$627.60$10.25$1,265.42
59$637.86$631.00$6.85$634.42
60$637.86$634.42$3.44$0.00

Frequently Asked Questions

Should I focus on monthly payment or purchase price?

Both matter, but negotiating only around a monthly payment can hide a longer term or larger amount financed. Compare price, APR, term and total repayment together.

How should I use the result?

Use the result to compare scenarios and verify decision-critical figures with the relevant provider, official document or qualified professional.