Car Total Cost of Ownership Calculator: What You Really Pay
Fuel, insurance, depreciation, and maintenance often exceed the purchase price. Calculate true car ownership cost before you buy or lease.
Cars are lifestyle products sold on monthly payments. Ownership is a multi-year cost stack: depreciation, fuel or electricity, insurance, tires, tax, parking, and repairs. A total cost of ownership (TCO) calculator adds those lines so you can compare cars honestly.
Two cars with the same payment can differ by thousands per year once insurance groups and fuel economy diverge. Used cars may win on depreciation but lose on repairs. EVs flip fuel and tax assumptions again.
Depreciation is usually the largest cost for new cars in the first three years — larger than fuel for many drivers.
Build Your TCO Stack
Start with purchase price minus expected residual value over your horizon. Add fuel/energy using your real annual kilometers. Add insurance quotes for your age and postcode — do not use national averages. Add maintenance schedules and a repair reserve that grows with vehicle age.
New vs Used vs EV
New cars cost more in depreciation; used cars cost more in uncertainty. EVs often save on energy and tax but may face higher insurance or tire costs. Run EV vs Petrol alongside Car Total Cost for a complete view.
Five-Year Cost Shape
The stacked view below shows how categories accumulate. Your mix will differ by city parking and commute length.
Illustrative 5-Year Car Costs by Category
Click chart to expand
Putting It Into Practice
Use Car Total Cost of Ownership on TrendMandi before you fall in love with a trim level. If the five-year number shocks you, that is the calculator doing its job.
Compare with EV vs Petrol and Car Affordability so cash-flow fit and energy choice stay aligned.