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Auto Loan Calculator

Use this auto loan calculator to compare payment, payoff, or borrowing scenarios for auto loan.

Primary answer
Monthly payment
Inputs to verify
Vehicle price, Down payment, and Trade-in value
Use type
Use as an estimate that depends on assumptions.
Keyword intent
auto loan calculator

Calculator

Auto Loan Calculator

Calculates monthly payment from vehicle price, down payment, trade-in value. Defaults are filled in so you can review a working example before changing inputs.

USD

Purchase price before down payment, trade-in, user-entered taxes, and fees.

USD

Cash paid upfront that reduces the amount financed.

USD

Estimated value credited for the trade-in vehicle.

USD

Remaining loan balance on the trade-in. If this is higher than trade-in value, negative equity is added to the loan.

More inputs4 additional assumptions
%

User-entered tax rate only. This calculator does not look up current state or local tax rules.

USD

Optional taxes, title, registration, documentation, or dealer fees entered by the user. Blank is treated as 0.

%

Use 6.75 for 6.75%. The calculator divides this by 12 for the monthly periodic rate.

months

Whole number of monthly end-of-period payments.

Result

Result reflects the current submitted inputs.

  • Risk B
  • Reviewed 2026-05-26
  • 4 sources
Monthly payment490.02 USD
Amount financed24,895 USD
Total loan payments29,401.19 USD
Total interest4,506.19 USD
Sales tax amount2,000 USD
Net trade-in credit6,000 USD
Monthly periodic rate0.5625%

Breakdown

Monthly periodic rate
0.5625%
Number of payments
60
User-entered taxes and fees
2,895 USD
Net trade-in credit
6,000 USD
  • Taxes and fees come only from user-entered inputs; no current tax, fee, rebate, or rate data is looked up.
  • Negative trade-in equity increases the amount financed.
  • The loan is fully amortizing with fixed monthly payments.
  • Payments are due at the end of each monthly period.
  • Annual rate input is treated as a nominal annual APR/rate divided by 12.
  • Insurance, warranties, dealer add-ons not entered as fees, precomputed interest, late fees, and lender-specific first-payment timing are excluded.
  • This is an educational estimate, not financial advice, a dealer quote, or a Truth in Lending disclosure.

Accuracy notes

Risk level
B
Reviewed
2026-05-26
Sources
4
Primary result
Monthly payment

Formula logic is kept in a pure calculator module with fixtures, source notes, and page-visible assumptions.

Categories

What the result means

Monthly payment is the number to carry forward from this auto loan calculation. Fixed monthly principal-and-interest payment. Read the payment or payoff number first, then compare interest, balance, and timing outputs before changing a loan decision. Use amount financed, total loan payments, and total interest to explain why monthly payment moved when an input changed. Run at least one conservative and one optimistic scenario before comparing with a real quote or statement.

Monthly paymentFixed monthly principal-and-interest payment.
Amount financedVehicle price plus user-entered tax and fees, minus down payment and net trade-in credit.
Total loan paymentsUnrounded monthly payment multiplied by the number of payments.
Total interestTotal loan payments minus amount financed.

Use the result this way

  1. Start with Monthly payment, then use supporting outputs only to explain the primary answer.
  2. Verify vehicle price, down payment, and trade-in value before copying the result.
  3. Keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise.
  4. Run at least one conservative and one optimistic scenario before comparing with a real quote or statement.

User job

How to use this calculator

Use Auto Loan Calculator when you need monthly payment, then use amount financed and total loan payments to check the context for planning conversations, quote comparisons, payment checks, and scenario review.

Best for

  • Comparing one financial scenario with another
  • Preparing questions for a lender, advisor, or statement review
  • Reviewing a default example before entering your own vehicle price and down payment.

Check before relying

  • Verify rates, fees, timing, taxes, and local rules against official documents before acting.
  • Taxes and fees come only from user-entered inputs; no current tax, fee, rebate, or rate data is looked up.
  • Negative trade-in equity increases the amount financed.
  • Source context: Microsoft Support, reviewed 2026-05-26.

Next useful step

  • Boat Loan CalculatorUse next when the borrowing comparison needs boat loan inputs such as boat price and down payment.
  • Cash Back or Low Interest CalculatorUse next when you need better option from vehicle price and down payment after checking monthly payment.
  • Mortgage CalculatorUse next when the borrowing task needs estimated total monthly payment instead of monthly payment.

Formula

Amount financed equals vehicle price plus user-entered tax and fees minus down payment and net trade-in credit. Monthly payment then uses the fixed amortized-loan payment formula. Key assumptions: Taxes and fees come only from user-entered inputs; no current tax, fee, rebate, or rate data is looked up. Negative trade-in equity increases the amount financed. The loan is fully amortizing with fixed monthly payments.

  • Amount financed equals vehicle price plus user-entered tax and fees minus down payment and net trade-in credit. Monthly payment then uses the fixed amortized-loan payment formula.
  • Taxes and fees come only from user-entered inputs; no current tax, fee, rebate, or rate data is looked up.
  • Negative trade-in equity increases the amount financed.
  • Primary source context: Microsoft Support.

Inputs

Enter vehicle price, down payment, trade-in value, and amount owed on trade-in for planning conversations, scenario checks, and lender or statement comparison. Before calculating, keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise. Vehicle price: Purchase price before down payment, trade-in, user-entered taxes, and fees. Down payment: Cash paid upfront that reduces the amount financed. Trade-in value: Estimated value credited for the trade-in vehicle. Amount owed on trade-in: Remaining loan balance on the trade-in.

Vehicle pricePurchase price before down payment, trade-in, user-entered taxes, and fees.
Down paymentCash paid upfront that reduces the amount financed.
Trade-in valueEstimated value credited for the trade-in vehicle.
Amount owed on trade-inRemaining loan balance on the trade-in. If this is higher than trade-in value, negative equity is added to the loan.
Sales tax rateUser-entered tax rate only. This calculator does not look up current state or local tax rules.
User-entered feesOptional taxes, title, registration, documentation, or dealer fees entered by the user. Blank is treated as 0.
Annual rateUse 6.75 for 6.75%. The calculator divides this by 12 for the monthly periodic rate.
Loan termWhole number of monthly end-of-period payments.

Example

Using the default inputs, Auto Loan Calculator returns monthly payment of 490.02 USD. Adjust vehicle price, down payment, trade-in value, and amount owed on trade-in to match your own scenario.

FAQ

How is monthly payment calculated here?

Amount financed equals vehicle price plus user-entered tax and fees minus down payment and net trade-in credit. Monthly payment then uses the fixed amortized-loan payment formula. The first assumption to check is: Taxes and fees come only from user-entered inputs; no current tax, fee, rebate, or rate data is looked up.

What does Monthly payment mean for auto loan?

Read the payment or payoff number first, then compare interest, balance, and timing outputs before changing a loan decision. Secondary values such as amount financed, total loan payments, and total interest are there to explain the primary answer, not to replace it.

What should I enter for Vehicle price?

Purchase price before down payment, trade-in, user-entered taxes, and fees. Use USD for this field. Keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise.

How does Down payment change monthly payment?

Cash paid upfront that reduces the amount financed. Changing it can alter monthly payment because the formula uses the submitted inputs together. Also compare APR period, compounding, fees, payment timing, taxes, insurance, and extra-payment assumptions.

Why does the auto loan example show 490.02 USD for monthly payment?

The default inputs produce 490.02 USD for monthly payment. Treat that as a format and scale check, then replace every default value with your own inputs.

What should I compare before using the auto loan payment result?

Compare the rate period, payment timing, fees, taxes, escrow items, payoff assumptions, and the actual quote or statement that governs the decision.

Sources

Last reviewed: 2026-05-26

  • Reviewed 2026-05-26
    PMT functionMicrosoft Support. Fixed monthly payment formula, monthly rate consistency, end-of-period payment timing, and exclusion of taxes/reserves/fees from the payment function.
    Scope
    Financial function documentation for fixed payments and constant interest rate loans.
    Supports
    Fixed monthly payment formula, monthly rate consistency, end-of-period payment timing, and exclusion of taxes/reserves/fees from the payment function.
  • Reviewed 2026-05-26
    Auto Loans Key TermsConsumer Financial Protection Bureau. Auto-loan input labels, amount-financed explanation, trade-in and down-payment assumptions, and disclaimer copy.
    Scope
    Consumer guidance defining auto-loan terms including APR, amount financed, down payment, trade-in, finance charge, and total cost.
    Supports
    Auto-loan input labels, amount-financed explanation, trade-in and down-payment assumptions, and disclaimer copy.
  • Reviewed 2026-05-26
    What's the difference between a simple interest rate and precomputed interest on an auto loan?Consumer Financial Protection Bureau. Assumption that this calculator is a simplified fixed-payment estimate and not a precomputed-interest or lender-specific schedule.
    Scope
    Consumer guidance on simple interest versus precomputed interest for auto loans.
    Supports
    Assumption that this calculator is a simplified fixed-payment estimate and not a precomputed-interest or lender-specific schedule.
  • Reviewed 2026-05-26
    What is the difference between a loan interest rate and the APR?Consumer Financial Protection Bureau. APR assumption notes, fee exclusion warning, and page-visible finance disclaimer.
    Scope
    Consumer finance guidance for APR versus interest rate.
    Supports
    APR assumption notes, fee exclusion warning, and page-visible finance disclaimer.

Disclaimer

This borrowing calculator is for educational payment and payoff estimates only. It is not a lender quote, credit approval, legal disclosure, tax advice, or a substitute for reviewing contracts, fees, escrow items, and local rules.