Auto Loan Calculator
Model the true monthly cost of a car including down payment and trade-in.
Your details
Principal vs interest
How this is calculated
The loan amount is the vehicle price minus your down payment and any trade-in value. The monthly payment is calculated using the standard amortising loan formula.
Longer terms lower the monthly hit but sharply increase total interest — and can leave you owing more than the car is worth for the first few years.
Who this calculator is for
This is aimed at anyone weighing up borrowing, saving or investing decisions before committing to them. It is most useful when you are comparing offers side by side, testing how sensitive a plan is to a change in rate or term, or sanity-checking a figure a lender or adviser has quoted you.
Assumptions and accuracy
Results assume the interest rate you enter stays fixed for the whole term and that payments are made on schedule. Real products may carry arrangement fees, early-repayment charges, variable rates, or different compounding intervals, all of which change the total. Use this to compare options, then confirm the exact figures with the provider.
Frequently asked questions
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See every calculator on the homepage, browse our free online tools, or read the guides on our blog.
