Skip to main content

How to Calculate Car Payment

What is Car Payment?

A car payment calculator determines the monthly payment for a vehicle purchase based on price, down payment, trade-in value, interest rate, and loan term. It helps you find a car that fits your budget before walking into a dealership.

Step-by-Step Guide

  1. 1Net loan = Vehicle price − Down payment − Trade-in value
  2. 2Apply monthly payment formula: PMT = P × r(1+r)ⁿ / ((1+r)ⁿ − 1)
  3. 3Add sales tax to the purchase price (varies by state: 0–10%)
  4. 4Factor in registration, documentation fees, and dealer fees

Worked Examples

Input
$35,000 car, $5,000 down, 7% APR, 60mo
Result
$594/month
$30,000 financed
Input
Same but 72 months
Result
$512/month
Lower monthly but $1,200 more total interest

Ready to calculate? Try the free Car Payment Calculator

Try it yourself →

Settings

PrivacyTermsAbout© 2026 PrimeCalcPro