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© 2026 Scypion Finance. Founded by Erajah Scypion.Your money, and the forces that move it.
Home›Calculators›Big Purchases›Auto Loan Calculator
◆ CALCULATOR

Auto Loan Calculator

See your monthly payment, total interest, and the real out-of-pocket cost of financing a vehicle before you sign.

✓ ReviewedBy the Scypion Finance team · The method, a worked example, and the sources are laid out below.
◆ CALCULATOR

Auto Loan

Calculate your monthly payment, total interest cost, and the true price of a vehicle once financing is factored in.

Try an example
The vehicle
Vehicle Price
$
Down Payment
$
Trade-In Value
$
Financing
Sales Tax
%
Fees & Other Costs
$
APR
%
Loan Term
Monthly Payment
$528
Loan Amount
$27,000
Total Interest
$4,697
True Out-the-Door Cost
$34,697
Balance (60-mo)
$0$5,848$11,695$17,543$23,390Yr 1Yr 2Yr 3Yr 4Yr 5
xBalance (60-mo)
Yr 1$22,276
Yr 2$17,237
Yr 3$11,859
Yr 4$6,122
Yr 5$0
Show amortization schedule
YearInterestPrincipalBalance
1$1,616$4,724$22,276
2$1,300$5,040$17,237
3$962$5,377$11,859
4$602$5,738$6,122
5$218$6,122$0

How to use this calculator

  1. Enter the vehicle priceSticker or negotiated price, before tax and fees.
  2. Subtract your down payment and trade-inMore money down means a smaller loan and less total interest.
  3. Set the rate and termA longer term lowers the monthly payment but raises total interest.

A car is the largest purchase most people finance after a home, and the loan terms decide what it truly costs. The monthly payment a dealer quotes hides the total, which the rate and the term length quietly drive.

◆ Frequently Asked Questions

Should I include sales tax and fees in the loan?

Include them if you plan to finance them, which is common. Rolling tax and fees into the loan raises the amount you borrow and the interest you pay, so paying them in cash up front is cheaper if you can.

Is a longer loan term a good idea?

A longer term lowers the monthly payment but raises the total interest, and it keeps you owing more than the car is worth for longer. Compare a shorter term before you stretch to 72 or 84 months.

How much should I put down?

A larger down payment shrinks the loan, lowers the interest, and reduces the risk of owing more than the car is worth. Twenty percent is a common target, but any amount down helps.

What rate should I use if I do not know mine?

Your rate depends mostly on your credit. If you have not been quoted one, enter a range and compare. Strong credit often qualifies for several points lower, which the calculator shows in real dollars.

Keep reading

◆ BIG PURCHASES

Buying a Car: New vs. Used, Financing, and Total Cost of Ownership

Strategic car purchasing: new vs. used analysis, financing options, depreciation, and minimizing total cost of ownership.

7 min read·February 25, 2026
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◆ BIG PURCHASES

The Financial Shock Behind Every Major Life Event

Marriage, a first child, job loss, a medical crisis, death in the family: each one carries a price tag most people discover only after the fact.

10 min read·February 28, 2026
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◆ BIG PURCHASES

Home Buying Process: Steps from Pre-Approval to Closing

Complete home buying roadmap: pre-approval, offers, inspection, appraisal, underwriting, and closing. Avoid costly mistakes at each step.

8 min read·February 27, 2026
Read →

◆ Sources

  1. U.S. CFPB, Auto Loans
  2. U.S. FTC, Financing or Leasing a Car
  3. Investopedia, How to Calculate Auto Loan Payments
◆ More for "How much can I afford?"
  • Mortgage Calculator
  • Debt-to-Income (DTI) Calculator
All calculators →

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