A car loan calculator helps you estimate your monthly payment before buying a new or used car. You can enter the vehicle price, down payment, interest rate, and loan term to see how much you may pay each month. It also helps you calculate total interest and account for sales tax, fees, and trade-in value. By comparing different loan amounts and repayment terms, you can find a payment that fits your budget and understand the total cost of borrowing.

How Do You Use the Car Loan Calculator?

To use the car loan calculator, enter the price of the vehicle, your down payment, the annual interest rate, and the loan term. The calculator uses these details to estimate your monthly payment and total interest. You can change any value to see how it affects your loan.

Follow these steps to calculate your car payment:

1. Enter the vehicle price: Add the agreed purchase price of the new or used car.
2. Add your down payment: Enter how much money you plan to pay upfront.
3. Enter the interest rate: Use the annual interest rate offered by your lender or an estimated rate.
4. Choose the loan term: Select how many months you want to repay the loan, such as 36, 48, 60, or 72 months.
5. Include taxes and fees: Add sales tax, registration fees, and other charges if you plan to finance them.
6. Add your trade-in details: Enter the trade-in value and any outstanding loan balance on your current vehicle.
7. Review your results: Check the estimated monthly payment, total interest, and overall loan cost.

You can adjust the loan term, down payment, or interest rate to compare different financing options before visiting a dealership.

What Information Do You Need to Calculate a Car Payment?

You need four main details to calculate a monthly car payment: the amount you want to borrow, annual interest rate, loan term, and down payment if you are starting with the vehicle price.

The first four details are enough for a basic estimate. Including taxes, fees, and trade-in information can make your calculation closer to the actual financing amount.

How Do You Include Sales Tax, Fees, and Trade-In Value?

You can include sales tax, title fees, registration charges, and trade-in value when calculating the amount you need to finance.

For example, suppose you buy a car for $30,000, pay $5,000 upfront, and finance $2,000 in taxes and fees. Your estimated loan amount would be $27,000.

If you also have $3,000 in positive trade-in equity, the amount financed could fall to $24,000, assuming the tax and fee figures remain unchanged.

Sales tax rules differ by state, so your actual financed amount may vary.

How Do You Calculate a Monthly Car Loan Payment?

You can calculate a monthly car loan payment using the amount financed, annual interest rate, and loan term. For a standard fixed-rate loan with equal monthly payments, the calculation spreads principal and interest across the repayment period.

What Is the Formula for Calculating Car Loan Payments?

The standard car loan payment formula is:

M=Pr(1+r)n(1+r)n-1

Where:

• M: Monthly loan payment
• P: Principal or amount financed
• r: Monthly interest rate (annual nominal interest rate ÷ 12)
• n: Total number of monthly payments

For a loan with a 6% annual interest rate, the monthly rate would be 0.005, or 0.5%.

If the loan has a 0% interest rate, divide the principal by the number of monthly payments instead.

This formula assumes regular monthly payments and a standard fixed-rate amortization schedule. Actual lender calculations may differ depending on the loan agreement and interest calculation method.

How Much Is the Monthly Payment on a $25,000 Car Loan?

A $25,000 car loan at a 6.5% annual interest rate over 60 months would cost approximately $489.15 per month.

Here is the calculation:

These figures assume equal monthly payments with no additional financed charges or missed payments. The displayed totals use the unrounded payment amount.

You can reduce your monthly payment by choosing a longer loan term or increasing your down payment. However, extending the term usually increases the total interest paid.

What Factors Affect Your Monthly Car Payment?

Your monthly car payment mainly depends on the amount financed, interest rate, and loan term. Down payments, trade-in equity, taxes, and fees also affect the amount you borrow.

Understanding these factors helps you compare different loan options without focusing only on the monthly payment.

How Does a Down Payment Change Your Car Loan?

A down payment reduces the amount you need to borrow. The more money you pay upfront, the less principal you finance, which generally reduces both monthly payments and total interest.

For example, if you buy a $30,000 car and make a $5,000 down payment, your starting loan amount would be $25,000 before taxes and other fees.

If you increase the down payment to $10,000, the starting loan amount falls to $20,000.

A larger down payment may also help you avoid owing more than the vehicle is worth. However, you should keep enough savings for insurance, maintenance, and unexpected expenses.

How Does the Interest Rate Affect Your Monthly Payment?

The interest rate determines how much a lender charges for borrowing money. A higher rate increases your monthly payment and the total interest paid over the loan term.

For example, borrowing $25,000 for 60 months at 6.5% results in an estimated monthly payment of $489.15. If the interest rate increases to 8%, the payment rises to approximately $506.91.

Even a small rate difference can add hundreds or thousands of dollars in borrowing costs over several years.

Your actual interest rate depends on the lender, credit history, loan amount, repayment term, and other financial details.

How Does the Loan Amount Affect Your Payment?

The loan amount is the money you finance after accounting for down payments, trade-in equity, rebates, and applicable charges.

For example, financing $20,000 instead of $25,000 at the same rate and term results in a lower monthly payment.

However, the vehicle’s advertised price is not always the amount you borrow. Taxes, registration fees, optional products, and outstanding trade-in debt can increase the final loan amount.

What Is the Difference Between Car Loan APR and Interest Rate?

The interest rate is the percentage a lender charges on your outstanding loan principal. The annual percentage rate (APR) is a broader measure of borrowing costs because it includes certain fees and finance charges.

Both figures are useful, but they serve different purposes.

When comparing lenders, check both the interest rate and APR. Two loans can have the same interest rate but different APRs because their fees differ.

Does APR Include Loan Fees?

Yes. APR includes certain loan fees and finance charges, but not every cost associated with buying a vehicle.

For example, some charges related to obtaining credit may be included in APR, while ordinary vehicle purchase charges may not be.

The Consumer Financial Protection Bureau (CFPB) explains that a lender’s Truth in Lending disclosure provides important details such as APR, finance charge, amount financed, and total payments.

You can review the CFPB’s Truth in Lending explanation to understand these figures.

How Does Your Credit Score Affect Your Car Loan Rate?

Your credit score can influence the interest rate and financing terms a lender offers. Borrowers with stronger credit histories may qualify for lower rates, although approval and pricing depend on several factors.

Lenders may consider:

• Credit score and payment history
• Income and existing debt
• Loan amount and repayment term
• Down payment
• Vehicle age and condition

A credit score does not guarantee a specific interest rate. You should compare actual lender offers instead of relying only on advertised rates.

Is a 60-Month or 72-Month Car Loan Better?

A 60-month car loan generally costs less in total interest than a 72-month loan when the principal and interest rate are the same. However, a 72-month loan offers lower monthly payments by spreading repayment over an additional year.

The better option depends on your monthly budget and how much interest you are willing to pay.

How Do 36, 48, 60, 72, and 84-Month Car Loans Compare?

The following example compares a $25,000 car loan at a fixed annual interest rate of 6.5%.

Illustrative estimates rounded to cents. The same rate is used for every term to show the effect of repayment length.

A 36-month loan has the highest monthly payment in this example but the lowest total interest. An 84-month loan offers the lowest monthly payment but costs considerably more in interest.

Does a Longer Car Loan Term Cost More?

Yes. When the interest rate and principal stay the same, a longer repayment term increases total interest because you carry the loan balance for more months.

Longer loans can also increase the risk of negative equity, especially when a vehicle loses value faster than the outstanding balance decreases.

The CFPB recommends looking beyond the monthly payment when comparing auto loan offers. You can read its auto loan comparison guidance for more information.

How Do You Calculate a Car Payment With Tax, Title, and Fees?

To calculate a car payment with taxes and fees, add the financed purchase charges to the vehicle price, then subtract your down payment, applicable rebates, and trade-in equity. Use the resulting amount financed to estimate the monthly payment.

For example:

This example assumes all listed taxes and fees are financed and no trade-in or rebate applies.

Is Sales Tax Included in a Car Loan?

Sales tax can be included in the financed amount if the transaction and lender allow it. The amount depends on the state, local tax rules, and the vehicle purchase details.

For example, a 6% sales tax on a fully taxable $30,000 vehicle purchase would be $1,800.

However, not every state calculates vehicle sales tax the same way. Some states also apply special rules to trade-ins, rebates, and vehicle purchases.

Use your applicable tax rate or the tax amount provided by the dealer for a more accurate estimate.

Which Dealer, Title, and Registration Fees Affect Your Loan?

Several charges may increase the total amount you pay when buying a vehicle.

Common examples include:

• Title fee: A charge for issuing or transferring vehicle ownership documents.
• Registration fee: A charge for registering the vehicle with the state.
• Dealer documentation fee: A charge for processing purchase paperwork.
• Optional add-ons: Products such as extended warranties or protection plans that may be included in financing if you choose them.

Not every fee must be financed. Some charges can be paid upfront, while others may be included in the loan.

Ask the dealer for an itemized out-the-door price before agreeing to financing.

Does a Trade-In Reduce Sales Tax?

A trade-in may reduce the taxable amount of a vehicle purchase in some states. However, tax rules differ by location, and not every trade-in qualifies for the same treatment.

For example, a state that allows a full qualifying trade-in credit may calculate tax on the vehicle price after subtracting the eligible trade-in allowance.

Other states may use different rules or offer no such credit.

Always confirm the applicable rules before including a trade-in tax benefit in your calculation.

How Does a Trade-In Affect Your New Car Loan?

A trade-in can reduce the amount you need to finance when your current vehicle is worth more than its outstanding loan balance. If you owe more than the vehicle is worth, the unpaid difference is called negative equity and may increase your new loan.

To calculate your trade-in equity, subtract the outstanding loan payoff from the trade-in value.

How Do You Calculate Positive Trade-In Equity?

Positive equity means your vehicle’s trade-in value is higher than the amount you owe.

For example:

You could apply the $5,000 in equity toward your next vehicle purchase, reducing the amount you need to borrow.

The final amount depends on the dealership agreement and any applicable taxes or fees.

What Happens When You Have Negative Equity?

Negative equity means you owe more on your current car loan than the vehicle is worth.

Suppose your car has a trade-in value of $15,000, but the outstanding loan payoff is $18,000. You have $3,000 in negative equity.

If you roll this amount into a new car loan, your new borrowing amount increases by $3,000.

The Federal Trade Commission (FTC) warns that dealers may include unpaid trade-in debt in new financing even when they advertise that they will pay off the old loan.

Read the FTC’s negative equity guidance before rolling an existing balance into another loan.

Is a New or Used Car Loan Cheaper?

A used car loan may require less borrowing because the vehicle costs less, but the interest rate can be higher than a comparable new car loan. New cars often have higher purchase prices, although some may qualify for promotional financing.

The cheaper option depends on the actual vehicle price, loan terms, fees, and other ownership costs.

Why Can Used Car Loan Interest Rates Be Higher?

Used car loan rates can be higher because lenders may view older vehicles as greater lending risks. The vehicle’s age, condition, value, and loan term can influence the financing terms.

However, not every used car loan has a higher rate than every new car loan. Borrower credit and individual lender policies also matter.

Compare the actual offers available for each vehicle instead of assuming one financing option will always be cheaper.

How Do You Compare New and Used Car Payments?

You can compare new and used car payments by entering each vehicle’s purchase price, interest rate, down payment, and loan term into the calculator.

Use the same loan term where possible to make the comparison easier.

For example, a used vehicle may have a lower price but a higher interest rate. Its monthly payment may still be lower, but the interest-rate difference can reduce the savings.

Also consider insurance, maintenance, repairs, and depreciation. These costs are separate from the loan payment but affect how much the vehicle costs to own.

What Is a Car Loan Amortization Schedule?

A car loan amortization schedule shows how each monthly payment is divided between principal and interest. It also shows how the outstanding loan balance decreases during the repayment period.

With a standard fixed-rate loan, the interest portion is usually higher at the beginning because more principal remains unpaid.

As the balance decreases, more of each scheduled payment goes toward principal.

How Much of Each Car Payment Goes Toward Principal and Interest?

Suppose you borrow $25,000 at a 6.5% annual interest rate over 60 months.

Your estimated monthly payment is $489.15.

For the first payment:

• Starting principal: $25,000
• First month’s interest: approximately $135.42
• Principal paid: approximately $353.73
• Remaining balance: approximately $24,646.27

The next month’s interest is calculated on the lower outstanding balance. Over time, the principal portion of each payment generally increases.

How Can You Check Your Remaining Car Loan Balance?

An amortization schedule can help you estimate the remaining principal after a certain number of payments.

Find the payment month in the schedule and check the remaining balance.

However, the balance shown in a standard amortization schedule may differ from your lender’s actual payoff amount because of daily interest, payment timing, fees, or other loan terms.

If you want to see how additional payments could reduce your loan balance, use our Car Loan Payoff Calculator with Extra Payments.

How Do You Compare Two Car Loan Offers?

To compare car loan offers, look at the amount financed, interest rate, APR, loan term, monthly payment, and total repayment cost. A loan with a lower monthly payment is not always the cheaper option.

For a useful comparison, review the following details:

Make sure you compare offers using the same vehicle purchase assumptions wherever possible.

Should You Compare APR or Monthly Payments?

You should compare both APR and monthly payments, along with the total cost of borrowing.

APR helps you understand the annual cost of financing, including certain charges. Monthly payments show how much you need to pay regularly.

A lower monthly payment may look attractive, but it can result from a longer loan term that increases total interest.

Review the full loan agreement before choosing an offer.

Is a Cash Rebate Better Than a Low APR Offer?

A cash rebate reduces the purchase cost when applied to the transaction, while a low APR offer reduces financing costs.

For example, one dealer may offer a $2,000 rebate with standard financing, while another offer provides a lower promotional APR without the rebate.

To find the cheaper option, calculate both offers using their actual rates, financed amounts, fees, and repayment terms.

Some promotional financing offers cannot be combined with rebates, so check the eligibility requirements before making a comparison.

Frequently Asked Questions About Car Loans

Can I Calculate a Car Loan With No Down Payment?

Yes. Enter $0 as your down payment to estimate the monthly payment for a zero-down car loan. The result will depend on the amount financed, interest rate, and repayment term. Approval for zero-down financing depends on the lender and your financial situation.

Can I Use This Calculator for a Used Car?

Yes. You can use the calculator for both new and used vehicles. Enter the used car’s purchase price, expected interest rate, down payment, and loan term to estimate the monthly payment.

Does the Calculator Include Insurance and Maintenance?

A standard car loan calculator estimates principal and interest payments. Insurance, maintenance, fuel, repairs, and other ownership costs are usually excluded unless the calculator specifically provides fields for them.

Why Is My Lender’s Monthly Payment Different From the Estimate?

Your lender’s payment may differ because of financed fees, optional add-ons, the actual interest rate, payment schedule, or loan calculation method. Review the lender’s loan agreement and Truth in Lending disclosure to confirm the final figures.

Can I Calculate Car Payments Without Knowing My APR?

Yes. You can enter an estimated annual interest rate to compare possible monthly payments. However, the results are only estimates until you receive actual financing terms from a lender.