Annual True Cost of a Car Calculator
Total annual cost to own and run a car.
Calculate the total annual cost of owning a car including depreciation, fuel, insurance, tax, and maintenance. Free and runs in your browser.
What this tool does
Enter annual depreciation, fuel, insurance, tax, and maintenance. The tool totals annual and monthly cost.
Enter Values
Formula Used
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Calculations, display, or translation — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
2,500 depreciation, 1,800 fuel, 900 insurance, 300 tax, 600 maintenance = 6,100/year — 508/month. Most people underestimate total car cost by half. Running the real number enables honest decisions about whether to own, downsize, or go car-free.
A worked example
Try the defaults: annual depreciation of 2,500, annual fuel of 1,800, annual insurance of 900, annual tax + mot of 300. The tool returns 6,100.00. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.
What moves the number most
The result responds to Annual Depreciation, Annual Fuel, Annual Insurance, Annual Tax + MOT, and Annual Maintenance. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.
The formula behind this
Sum of five annual cost categories. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.
When the result says "wait"
If the payback is longer than you expect to keep the item, the math says no. That's useful information — not everything has to earn its keep financially, but knowing when something doesn't means the decision to buy it anyway is deliberate.
What this doesn't capture
Purchase decisions rarely come down to payback alone. Reliability, time saved, enjoyment, and alternatives outside the calculation all matter. The figure gives you the money side cleanly so you can weigh it against everything else honestly.
Annual car cost produces a total based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Sum of five annual cost categories.
References
Frequently Asked Questions
Biggest cost surprise?
Does this include parking?
Electric vs petrol?
How much is too much?
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