When to use this calculator
Estimate vehicle finance payments after a down payment, trade-in credit and financed fees. Taxes must be included in price or fees if applicable. This does not apply local trade-in tax rules.
Explore the loan & repayment calculators for other questions in this topic. For a related calculation, use the Balloon Loan Balance Calculator: Estimate principal remaining after a sequence of partial loan repayments.
PUTTING IT INTO PRACTICE
Auto Loan: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Vehicle price | 25,000 |
| Down payment | 5,000 |
| Trade-in credit | 2,000 |
| Financed fees | 1,000 |
| Nominal annual rate (%) | 0 |
| Months (integer) | 60 |
| Result | 316.666667 per month |
- Check the input labels and enter the example values above.
- Apply the relationship: Financed principal = price + fees − down payment − trade-in; apply monthly amortisation.
- The result is 316.666667 per month, rounded for display.
How to interpret your result
Taxes must be included in price or fees if applicable. This does not apply local trade-in tax rules.
Use a fixed-rate amortising model for loans repaid by equal monthly instalments. An interest-only payment leaves the principal outstanding. Fees and contractual APR calculations require more than the interest rate alone.
Frequently asked questions
Does a lower monthly payment mean a cheaper loan?
Not necessarily. Extending the term can lower payments while increasing total interest. Compare both monthly affordability and overall cost.
When is the auto loan calculator useful?
Estimate vehicle finance payments after a down payment, trade-in credit and financed fees. Taxes must be included in price or fees if applicable. This does not apply local trade-in tax rules.
How do I use the auto loan calculator?
Enter vehicle price, down payment, trade-in credit, financed fees, nominal annual rate (%), months (integer). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Financed principal = price + fees − down payment − trade-in; apply monthly amortisation.
What should I check before using the result?
Taxes must be included in price or fees if applicable. This does not apply local trade-in tax rules.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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