Car Annual Running Cost Calculator

The True Cost of Car Ownership

The sticker price is only part of what a car costs. Depreciation alone costs 1,500–5,000 per year on most new cars. Add insurance, fuel, maintenance, registration, and financing interest, and the true annual cost often doubles the monthly payment figure people focus.

What Most People Overlook When Buying a Car

Many people find themselves surprised by costs that never crossed their mind at the dealership. Maintenance is a common one. Tyres, brake pads, and servicing add up quietly over the years. Registration fees and annual taxes vary widely depending on where you live, and they rarely get factored into the initial budget. It can help to think about the full ownership period rather than just the purchase moment. One approach is to estimate costs across a five-year window — that broader view often tells a very different story than the monthly payment figure alone. This is worth noting before signing anything.

Understanding Depreciation as a Real Cost

Depreciation is arguably the largest single cost of car ownership, yet it feels invisible because no invoice arrives for it. A new car can lose 15–25% of its value in the first year alone. Over five years, many vehicles lose more than half their original value. That loss is real money, even if it only becomes apparent when it comes time to sell or trade. Many people find it eye-opening to see depreciation expressed as a monthly figure alongside fuel and insurance. Suddenly the true cost picture looks quite different from the one on the forecourt window sticker.

Run it with sensible defaults

Using purchase price of 28,000, down payment of 5,000, finance rate of 7, loan term of 5, the calculation works out to 48,525.65. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Purchase Price, Down Payment, Finance Rate, Loan Term, and Monthly Insurance — do not pull with equal force.

How the math works

This calculator estimates total car ownership cost by combining depreciation, financing charges, insurance, fuel, and maintenance over a specified period. It assumes constant annual rates, no major repairs beyond routine maintenance, and typical driving patterns. Results are illustrations only, not predictions of actual costs.

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.