🧮 Calculators
Auto Loan Calculator
Estimate monthly car payments including down payment, trade-in, and tax. See total interest paid over the loan term.
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Loan Breakdown
Monthly Payment
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Total Loan Amount
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Total Interest
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Total Cost of Car
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How it works
01
Enter Price
Vehicle price, down payment, and trade-in credit.
02
Set Loan Terms
Interest rate (APR) and loan duration in months.
03
See Payment
Monthly payment and total interest you will pay.
Frequently asked questions
How is monthly payment calculated?
Standard amortization formula: P × (r × (1+r)^n) / ((1+r)^n - 1), where P is loan amount, r is monthly rate (APR ÷ 12), and n is number of months.
Should I choose a shorter or longer loan?
Shorter loans have higher monthly payments but far less total interest. A 3-year loan can save thousands vs a 6-year loan on the same car. Pick the shortest term you can comfortably afford.
Does down payment really matter?
Yes, massively. A 20% down payment reduces your loan by 20%, saves interest, and helps you avoid being "underwater" (owing more than the car is worth) if you need to sell.
Is this the exact number my lender will give me?
Very close if the APR is accurate. Actual quotes may include origination fees, dealer add-ons, or gap insurance which this basic calculator does not model.
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