MihsabaHow to use
The auto loan calculator turns vehicle price, down payment, trade-in value and any remaining trade-in balance into a financed amount, then calculates the fixed monthly payment, total payments and total interest from an annual rate and term in months. It does not assume local taxes or registration fees.
- Enter vehicle price and down payment.
- Add trade-in value and any remaining balance owed on it.
- Set the annual interest rate and loan term in months.
- Calculate the financed amount, monthly payment and total interest.
How it is calculated
Example
Example: a 40,000 vehicle with a 5,000 down payment, no trade-in, 60 months and 5% annual interest finances 35,000. The monthly payment is about 660.48 and total interest about 4,628.80.
Important notes
This is a mathematical estimate for a fixed-payment loan. Real offers may include origination fees, insurance, taxes, balloon payments or variable rates; verify the actual financing agreement before making a financial decision.
Worked examples and interpreting results
A worked car-loan example separates financed principal, monthly payment and total interest.
| Case | Calculation | Result |
|---|---|---|
| Amount financed | 40000 − 5000 | 35,000 |
| Monthly payment at 5% for 60 months | 35000 × r(1+r)^60 ÷ ((1+r)^60−1), r=0.05÷12 | 660.493178 |
| Total interest | 660.49317754 × 60 − 35000 | 4,629.590652 |
How to check the result
Compare the actual financed amount, not just sticker price. Down payment and trade-in reduce financing, while balance owed on a trade-in can increase it.
Frequently asked questions
How is a car payment calculated?
The financed amount is amortized using the monthly interest rate and number of monthly payments.
Does a trade-in reduce the loan?
Yes. Trade-in value reduces the amount financed, while any remaining balance owed on that vehicle increases the net financed amount.
Does this include taxes and fees?
Not automatically. Add financed taxes or fees to the vehicle price only when that matches your actual offer.
What if the interest rate is 0%?
The financed amount is divided evenly by the number of months.