What is the Car Loan Calculator?
The Car Loan Calculator allows prospective auto buyers to determine their monthly car payments before visiting a dealership. By calculating the exact payment, you can negotiate effectively and ensure the vehicle fits within your monthly budget.
How to Calculate Monthly Car Payments (Formulas)
Car loans are amortizing loans, meaning your monthly payment includes both principal reduction and interest charges.
- Amortization Formula: Payment = P * [ r(1+r)^n ] / [ (1+r)^n - 1 ]
- P is the principal amount (Price of car minus down payment and trade-in).
- r is the monthly interest rate (Annual rate divided by 12).
- n is the loan term in months (e.g., 60 months).
Frequently Asked Questions
How does a longer loan term affect my payments?
Choosing a 72-month or 84-month loan will lower your monthly payment compared to a standard 60-month loan. However, the longer term drastically increases the total amount of interest you pay over the life of the loan. Furthermore, it increases the risk of being "upside down" (owing more than the car is worth) as the car depreciates.
What is an upside-down car loan?
Being "upside down" or having negative equity means you owe the bank more money than the vehicle's current market value. This commonly happens if you put $0 down on a new car, which immediately loses 10-20% of its value the moment you drive it off the lot.
Does a larger down payment help?
Yes. A larger down payment reduces the principal amount you are borrowing, which directly lowers your monthly payment and saves you hundreds or thousands of dollars in interest charges.