Car Refinance Calculator
Compare current and refinanced auto loan payments, monthly savings, and total savings.
- Last reviewed
- July 8, 2026
- Cost
- Free to use
- Data
- Runs in your browser
Current Payment
Enter valid inputs
New Payment
Enter valid inputs
Monthly Savings
Enter valid inputs
Total Savings
Enter valid inputs
Methodology
How this calculator handles inputs
This calculator uses the values you enter above and applies the formula explained in the guide below. Results update in the browser and are intended for quick planning, comparison, and sanity-checking.
- Use consistent periods, currencies, and units across inputs.
- Review any assumptions before using the result in a decision.
- Recalculate when rates, prices, tax rules, or business terms change.
Guide
How it works
Use this calculator to estimate whether refinancing a car loan could lower your payment or total cost.
What this calculator does
The car refinance calculator compares your current payment with a new refinance payment using the remaining balance, current terms, new rate, new term, and fees.
Formula
Monthly savings = current payment - new payment
Total savings = remaining current payments - total refinance payments
How to use it
Enter your current balance, current rate, months remaining, new rate, new term, and refinance fees.
Common mistakes
- extending the term too far
- ignoring fees
- focusing only on monthly savings
FAQs
Can a refinance lower payment but increase total cost?
Yes. A longer term can reduce the payment while increasing total interest.
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