🚗Monthly Car Ownership Cost Calculator

Add up your loan, insurance, fuel, parking, and maintenance for a full monthly picture

$
$
mo
%
$
$
$
$

The True Monthly Cost of Car Ownership

Many buyers focus only on the monthly loan payment, overlooking insurance, fuel, parking, and maintenance — which often add 50–100% on top. Understanding the full picture before buying helps you choose the right vehicle for your budget.

This calculator uses the standard amortizing (equal monthly payment) formula to compute your loan payment, then sums all operating costs to show your true monthly and annual outlay.

Electric vehicles typically have lower fuel and maintenance costs but may have higher insurance premiums. Run the numbers for both gas and EV options before deciding.

Frequently Asked Questions

How is the monthly loan payment calculated?

Using the standard amortization formula: M = P × r(1+r)^n / ((1+r)^n − 1), where P is principal, r is monthly rate (APR ÷ 12), and n is number of months.

What percentage of income should go to car costs?

Financial advisors generally recommend keeping total car costs under 15–20% of monthly take-home pay. If your total exceeds this, consider a less expensive vehicle or longer loan term.