Auto Refinance Calculator - Lower Your Car Payment
Compare car loan refinance offers. Monthly savings, break-even, total interest.
Tool Interface
Your Current Auto Loan
Refinance Offer
Current Loan vs Refinance
Current Loan
Refinance
Cumulative Cost Over Time
Frequently Asked Questions
When does refinancing a car loan make sense? +−
Refinancing makes sense when the new loan saves you more than its fees cost. That usually happens when market rates have dropped, your credit score has improved since the original loan, or the original loan carried a high rate. A shorter new term also builds equity in the car faster.
What is the break-even point? +−
The break-even point is the number of months until your monthly savings have covered the refinance fees. If you plan to keep the car past that point, refinancing pays off overall. This calculator computes it automatically from your inputs.
Will refinancing hurt my credit score? +−
Expect a small, temporary dip from the hard inquiry and the new account appearing on your report. Rate-shopping helps: multiple auto-loan inquiries within a short window, usually 14 days, count as a single inquiry for scoring. On-time payments on the new loan help your score recover.
Which fees should I include? +−
Include any origination or application fee, title transfer and registration fees, and any prepayment penalty on your current loan. Lenders sometimes roll fees into the new loan balance; enter the total either way so the comparison stays honest.
Is my loan information private? +−
Yes. The whole comparison runs locally in your browser. Your balances, rates, and fees are never uploaded or stored anywhere.
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About This Tool
About This Tool
The Auto Refinance Calculator compares your current car loan against a refinance offer so you can see the real numbers before you sign. Enter your remaining balance, current rate and months left, then the new rate, term and fees. The tool shows both monthly payments, total interest on each side, your monthly and total savings, the break-even month and a clear verdict. Everything runs instantly in your browser.
Key Features
- Side-by-side comparison of your current loan and the refinance offer
- Monthly payment, total interest and total cost for both options
- Monthly savings and total savings with fee break-even calculation
- Cumulative cost chart showing when refinancing pays off
- Honest verdict: flags when a longer term costs more overall
- 100 percent client-side: no signup, no data sent anywhere
How to Use
- Enter your current auto loan: remaining balance, APR and months left.
- Enter the refinance offer: new APR, new term in years, and closing costs.
- Click Compare Refinance to see both plans, savings and the verdict.
- Use the chart to see exactly when the refinance pays for itself.
Note: results are estimates. Actual refinance terms, taxes and lender fees vary.