Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Calculate the down payment and resulting loan amount from a car price and down payment percentage.
This tool calculates your car down payment as car price × down payment percentage, along with the resulting loan amount -- a 10-20% down payment is a commonly cited benchmark for keeping a car loan manageable, though it's not a strict rule.
Enter the car price and your target down payment percentage. The down payment amount and loan amount appear instantly.
The down payment equals the car price multiplied by your percentage divided by 100, and the loan amount is the price minus that down payment. The tool treats the entire remaining price as the amount you would borrow. It does not add sales tax, fees, or interest, so the loan figure is a starting point rather than the final amount on a loan contract.
Down payment = price x (percent / 100); Loan amount = price - down payment
For a 28,000 dollar car at 15 percent down, the down payment is 4,200 dollars and the loan amount is 23,800 dollars. At 10 percent, the down payment falls to 2,800 dollars and the loan rises to 25,200 dollars. At 20 percent it becomes 5,600 dollars with a loan of 22,400 dollars. The gap between the 10 and 20 percent scenarios is 2,800 dollars in cash at signing, which shrinks the loan by the same amount. Every dollar you put down is a dollar you do not have to borrow, and do not pay interest on.
Putting down as much as possible is not always the best plan. If it drains your emergency savings, an unexpected repair or job disruption could cause more harm than the interest saved. Decide how much cash you want to keep in reserve first, and let the down payment come from what is left. If you are trading in a vehicle, the trade-in equity can work as part of your down payment, though you should check what the dealer is really offering for it.
After you get the loan amount, use a loan payment calculator to see your monthly payment at various rates and terms. If you start from a monthly budget instead of a price, the Car Affordability Calculator on this site works in that direction. The Down Payment Percentage Calculator is useful if you have a specific cash amount and want to know what percentage it represents.
The 10 to 20 percent range in the field label is a common benchmark, not a requirement or guarantee of better terms. Lenders set their own requirements, and some buyers qualify with little or nothing down. If you are unsure how much to put down, a credit union representative or nonprofit credit counselor can help you weigh your options.
No -- many buyers finance with less down (or none at all), though a larger down payment generally reduces your loan amount, total interest paid, and the risk of being "underwater" on the loan as the car depreciates.
No. It is simply the price minus your down payment. Taxes, registration, and dealer fees are extra and may increase the amount you finance.
Often yes, if the dealer or lender treats the trade-in equity as a credit toward the price. Convert it to a percentage of the price to enter here, or subtract it from the price yourself.
It reduces borrowing and interest, but you should still keep an emergency fund. Consider how much cash you want in reserve before deciding.
The math is identical. Enter the used car price and your chosen percentage; lenders may quote different rates and terms for used vehicles.
Reference: Consumer Financial Protection Bureau