Auto Refinance Calculator 2026
See exactly how much you'd save by refinancing your car loan at a lower rate. Compare monthly payment, total interest, and break-even timeline.
Current Loan
$
%
New Loan
%
$
$89
Monthly Savings
Break-even in 1 month
$450
Current Payment
$361
New Payment
$3,890
Interest Saved
Current Remaining Interest$3,600
New Total Interest$2,300
Refinancing Fees$50
Net Interest Saved$1,250
Break-Even Point1 month
Total Lifetime Savings$1,250
How to Get the Best Refinance Rate
Your credit score is the single biggest factor. Check your score before applying — if it's improved by 30+ points since your original loan, you almost certainly qualify for a lower rate. Credit unions typically offer the lowest auto loan rates, often 1-2% below banks and dealers.
The average new-car refinance rate in 2026 is around 5.5-7% for excellent credit (720+) and 7-12% for fair credit (580-680). If your original loan was dealer-arranged, you likely have significant room to refinance lower — dealers often mark up rates 2-3% for profit.