Car Payment Calculator
Free car payment calculator. Estimate your monthly auto loan payment with down payment, trade-in value, sales tax, and interest rate. Compare loan terms from 12 to 96 months side by side. Includes amortization schedule, negative equity handling, and extra payment savings analysis for new and used car loans.
Loan Term Comparison
Compare monthly payments and total costs across different loan terms
| Term | Monthly | Total Interest | Total Cost |
|---|---|---|---|
| 24 mo | $1,349.99 | $2,400 | $37,400 |
| 36 mo | $933.19 | $3,595 | $38,595 |
| 48 mo | $725.37 | $4,818 | $39,818 |
| 60 mo | $601.14 | $6,068 | $41,068 |
| 72 mo | $518.7 | $7,347 | $42,347 |
| 84 mo | $460.15 | $8,652 | $43,652 |
Loan Balance Over Time
Cumulative principal & interest paid vs. remaining balance
Amortization Schedule
See how your loan balance reduces over time with each payment
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $5,138 | $2,076 | $24,862 |
| 2 | $5,537 | $1,677 | $19,325 |
| 3 | $5,967 | $1,247 | $13,359 |
| 4 | $6,430 | $784 | $6,929 |
| 5 | $6,929 | $285 | $0 |
What Is a Car Payment Calculator?
Estimate your monthly auto loan payment before you visit the dealership
A car payment calculator estimates your monthly payment on an auto loan based on the vehicle price, down payment, interest rate, and loan term. It helps you understand the true cost of financing a car before committing to a purchase.
Unlike simple calculators, this tool also accounts for trade-in value, negative equity (when you owe more than your trade-in is worth), and sales tax — giving you a realistic picture of your actual monthly obligation.
Down Payment
Reduce your loan amount
Trade-in Value
Offset your purchase price
Sales Tax
State tax on the purchase
Car Payment Formula
The standard amortization formula used for auto loans
The monthly car payment is calculated using the standard amortization formula:
M
Monthly payment
P
Loan amount
r
Monthly rate (APR ÷ 12 ÷ 100)
n
Term in months
Example: $35,000 car with $5,000 down at 7.5% for 60 months
- Loan amount (P) = $35,000 − $5,000 = $30,000
- Monthly rate (r) = 7.5% ÷ 12 ÷ 100 = 0.00625
- Term (n) = 60 months
- Monthly payment = $601.14
- Total interest over 5 years = $6,068
Tips to Lower Your Monthly Car Payment
Practical strategies to reduce what you pay each month
Increase your down payment
Every extra $1,000 down reduces your monthly payment by roughly $17–$20 on a 60-month loan.
Improve your credit score
A higher credit score qualifies you for lower interest rates. Even a 1% rate reduction on a $30,000 loan saves ~$800 in total interest.
Choose a shorter loan term
While monthly payments are higher, you’ll pay significantly less in total interest. A 48-month term vs. 72-month can save thousands.
Shop around for rates
Get pre-approved from your bank or credit union before visiting the dealer. Comparing 3–4 lenders can save you 1–2% APR.
Consider a less expensive vehicle
The most effective way to lower your payment is to lower the purchase price. A $5,000 price reduction saves ~$100/month.
Make extra payments
Even small extra monthly payments reduce your principal faster, saving interest and shortening your loan term.
Average Auto Loan Interest Rates by Credit Score
Typical rates from US lenders (Experian, June 2025 data)
Source: Experian, “Average Auto Loan Interest Rates” (June 2025 data, published Aug 2025). Rates are national averages and may vary by lender and location.
Frequently Asked Questions
Common questions about car payments and auto loans