Auto Loan Calculator: Monthly Payment & Total Interest
A car with down, at APR over , paying extra each month.
Tap any underlined value to change it. Everything else is under All assumptions.
You pay $5,219 in interest and are done in 60 months.
Sales tax, title, registration and dealer fees are not included; add them to the price if the loan covers them.
Paying $100 more a month would finish 10 months sooner and save $896 in interest.
How we calculate thisFree, no ads, no account.
Pin locks in exactly what you see now, so finish your edits first. Then change any value, and the two are shown side by side.
A car with down, at APR over , paying extra each month.
What you pay toward principal and interest each year, and the balance left at the end of it. The loan clears in year 5.
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $5,248 | $1,795 | $24,752 |
| 2 | $5,600 | $1,444 | $19,152 |
| 3 | $5,975 | $1,069 | $13,177 |
| 4 | $6,375 | $669 | $6,802 |
| 5 | $6,802 | $242 | $0 |
How this auto loan calculator works
We use the standard fixed-rate amortization formula. Your monthly payment is sized so that the loan balance reaches zero at the end of the term. Early on, most of each payment is interest because the balance is still large; as the balance shrinks, more of each payment goes to principal.
- Amount financed = vehicle price − down payment − trade-in value.
- Payment formula: M = P × [ r(1+r)n / ((1+r)n − 1) ], with r = APR / 12 and n = term in months.
- An extra monthly payment is applied straight to principal, which both shortens the term and lowers total interest.
- 0% APR promos amortize linearly: monthly payment is just amount financed divided by the term in months.
Example
On a $35,000 vehicle with $5,000 down and 6.5% APR over 60 months, the payment is about $587/mo and you pay roughly $5,200 in interest over the life of the loan. Adding $100/mo extra clears the loan about 9 months early and saves roughly $850 in interest. The exact figures update as you edit the inputs above.
Tips
- Compare 60 vs 72 months at the same APR to see the interest cost of a longer term.
- A bigger down payment cuts both the payment and the interest you ever pay.
- Even $50/mo extra hits a meaningful share of the original interest bill on a 5-year loan.
What's not included
- Sales tax, title, registration, and dealer fees vary by state and dealer.
- Gap insurance, extended warranties, and other add-ons.
- Negative equity on a trade-in (you owe more on the old car than it's worth). Subtract the rollover from the trade-in field to approximate it.
Frequently asked questions
Is a 72-month loan a bad idea?
How does my credit score affect the APR?
Should I take the 0% APR or the cash rebate?
Does this include sales tax and fees?
See also the mortgage calculator and methodology and sources.