The True Cost of Car Ownership Calculator is a free, accurate online tool designed to help you get fast, reliable answers to common questions in seconds. Just enter monthly payment/lease, insurance (monthly), annual miles, fuel efficiency (mpg), gas price/gallon, annual maintenance, annual registration/tax, current car value, annual depreciation and instantly see annual fuel cost, annual depreciation loss, total annual cost, cost per mile, true monthly cost. Accuracy matters, and a good calculator saves you both time and second-guessing. This tool is built to give you a clean, trustworthy answer the first time. Under the hood, the tool applies the standard formula: Total = Payment + Insurance + Fuel + Maintenance + Registration + Depreciation. You can see exactly how the result is derived, which is especially useful for students, professionals, and anyone who wants to learn rather than just get an answer. CalcPlanet builds every calculator to be fast, mobile-friendly, and free, with no signup required. We test results against worked examples and reference implementations so you can rely on what you see. Enter your values above to get an instant, accurate true cost of car ownership calculator result, then explore the FAQs and examples below for deeper context. Use the result as a fast, accurate reference point and verify against your own data when the decision really matters. Bookmark this page so you can come back any time you need a quick answer, and explore the related calculators below for tools that often pair well with this one.
Reveals the complete cost of car ownership beyond just the monthly payment.
Enter all car expenses including payment, insurance, fuel, maintenance, and estimated depreciation.
Total = Payment + Insurance + Fuel + Maintenance + Registration + Depreciation
{ "fuel_annual": (annual_miles/mpg)*gas_price, "depreciation_cost": car_value*(depreciation/100), "total_annual": monthly_payment*12+insurance_monthly*12+(annual_miles/mpg)*gas_price+maintenance_annual+registration + car_value*(depreciation/100), "per_mile": (monthly_payment*12+insurance_monthly*12+(annual_miles/mpg)*gas_price+maintenance_annual+registration + car_value*(depreciation/100))/annual_miles, "per_month": (monthly_payment*12+insurance_monthly*12+(annual_miles/mpg)*gas_price+maintenance_annual+registration + car_value*(depreciation/100))/12}
All ownership costs combined including hidden depreciation.
Average is
Depreciation — a new car loses 20-30% in the first year alone.
Average is
Buy 2-3 year old cars (avoid steepest depreciation), drive less, DIY basic maintenance, shop insurance annually.
$0.67/mile in 2026 for business use — this reflects the true per-mile cost.
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