Free calculator

Car Ownership Cost Calculator

Free Car Ownership Cost Calculator with instant browser-based results and a clear calculation breakdown.

🚗 Car Ownership Cost Calculator

Calculate your total annual and monthly car ownership expenses

Purchase & Financing
Please enter a valid purchase price
Down payment cannot exceed purchase price
Please enter a loan term between 1 and 10 years
Please enter an interest rate between 0 and 30%

Operating Costs
Please enter valid annual mileage
Please enter MPG between 1 and 200
Please enter a gas price between $0 and $20
Please enter a valid insurance cost
Please enter a valid maintenance cost
Please enter a valid registration cost
Total Annual Cost of Ownership
$0
Monthly Cost
$0
Annual Cost Breakdown
Loan Payment (Principal + Interest) $0
Fuel Costs $0
Insurance $0
Maintenance & Repairs $0
Registration & Fees $0
Total Annual Cost $0
How this is calculated:
Monthly Loan Payment: Calculated using the standard amortization formula: M = P × [r(1+r)^n] / [(1+r)^n - 1], where P is the loan amount (purchase price - down payment), r is the monthly interest rate, and n is the number of months.
Annual Fuel Cost: (Miles per year ÷ MPG) × Gas price per gallon
Total Annual Cost: Sum of annual loan payments, fuel, insurance, maintenance, and registration fees.
Note: This calculator provides estimates based on your inputs and does not include depreciation, parking fees, tolls, or other variable costs.
Want to understand the calculation?
See examples, formula notes and limitations.
Read the guide