Car Cost Calculator
Running a car costs more than fuel alone. This calculator brings together insurance, tax, fuel, servicing and other costs to show the real annual and monthly cost of keeping a vehicle on the road.
What Goes Into Running Costs
- Insurance often one of the largest yearly costs
- Road tax based on the vehicle's band
- Fuel or charging driven by your mileage and economy
- Servicing, MOT and tyres the upkeep that is easy to forget

How The Calculator Works
The calculator adds up the main costs of running a car over a year, then breaks the total down to a monthly figure. Some costs are fixed, like tax, while others depend on how much you drive. Using realistic numbers gives the most useful result.
Typical Running Cost Categories
Use these headings as a checklist when you build your annual figure.
| Cost category | What to include |
|---|---|
| Fixed costs | Insurance, tax, breakdown cover and parking can be planned before you drive a mile. |
| Mileage costs | Fuel, charging, tyres and servicing usually rise as annual mileage increases. |
| Unexpected repairs | Older cars may need a repair buffer, especially if advisories are building up. |

How To Use The Running Cost Calculator
Add The Regular Costs
Enter insurance, tax, finance and other payments you expect through the year.
Add Fuel And Mileage
Include annual mileage plus fuel or charging details so variable costs are covered.
Add Upkeep
Include servicing, MOT and tyres, then compare the annual and monthly total.
What Our Expert Says
Free tools like these put official DVLA and DVSA data straight into drivers' hands. Used alongside a quick insurance comparison, they help you make a more informed decision about a vehicle before you commit, whether you are buying, selling or simply keeping your own car on the road.Co-Founder, Clean Green Cars

Running Cost FAQs
What Counts As A Running Cost?
Anything you pay to keep the car on the road, including insurance, tax, fuel or charging, servicing, MOT, tyres and any finance.
How Can I Lower My Running Costs?
Comparing insurance at renewal, driving efficiently, keeping up with servicing and choosing a lower-tax, more economical car can all help.
Does The Calculator Include Depreciation?
It focuses on the cash costs of running a car. Depreciation matters too but is harder to estimate, so consider it separately when buying.
Is Insurance Really That Big A Cost?
For many drivers it is one of the largest yearly costs, which is why comparing at renewal can make a real difference.

Useful Resources
- GOV.UK - Get Vehicle Information From DVLA - Check what vehicle details DVLA holds, including tax, MOT, fuel type and emissions data.
- GOV.UK - Check Vehicle Tax - Check whether a vehicle is taxed, when tax is due and whether it has been registered as off the road.
- GOV.UK - Check MOT Status - Check whether a vehicle has a valid MOT certificate and when the current MOT runs out.
- GOV.UK - Check MOT History - View past MOT results, recorded mileage, failures, advisories and certificate downloads.
- TfL - Check Your Vehicle - Check London ULEZ, LEZ and other charging rules for a vehicle.

