Scenario 1
New car
$35,000, $5,000 down, 7% rate, 60 months → $594/month, $5,640 in interest.
Know the real monthly cost of any car before you walk into the dealership.
Results update instantly as you type or drag.
Value of vehicle you're trading in
Quick insights
Total interest
$5,642
Total cost
$40,642
Quick answer
Monthly Payment = Loan × r(1+r)^n / ((1+r)^n − 1). The loan amount is price minus down payment and trade-in value.
How it works
A quick walkthrough of what this calculator does behind the scenes.
Enter the car price.
Add your down payment and trade-in value.
Enter the annual interest rate.
Set the loan term (36–72 months is typical).
Formula
No black box — here's exactly how the result is computed.
Loan = Car price − down payment − trade-in
r = Annual rate ÷ 12 ÷ 100
n = Term in months
Monthly Payment = Loan × r × (1 + r)^n
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(1 + r)^n − 1Examples
See how the numbers play out for typical use cases.
Scenario 1
$35,000, $5,000 down, 7% rate, 60 months → $594/month, $5,640 in interest.
Scenario 2
$18,000, $3,000 down, 9% rate, 48 months → $374/month, $2,952 in interest.
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