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.

Annual & monthly All the big costs Free to use

Car Cost Calculator

Work out the true monthly cost of running your car — fuel, insurance, tax, MOT, servicing and everything else.

Fuel / Charging
Fuel type
MPG
Fuel price pence/litre
Annual miles
🛡️ Insurance & Tax
Annual insurance
Annual road tax (VED)
🔧 MOT, Servicing & Repairs
MOT max £54.85
Annual servicing & repairs
🅿️ Other Costs
Parking & tolls
Breakdown cover
Other (washes, accessories)
£ Budget & Finance
Target monthly car budget optional
Monthly finance payment

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
Checklist clipboard illustration showing key insurance points.

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 categoryWhat to include
Fixed costsInsurance, tax, breakdown cover and parking can be planned before you drive a mile.
Mileage costsFuel, charging, tyres and servicing usually rise as annual mileage increases.
Unexpected repairsOlder cars may need a repair buffer, especially if advisories are building up.
Ian counting a wad of banknotes.

How To Use The Running Cost Calculator

1

Add The Regular Costs

Enter insurance, tax, finance and other payments you expect through the year.

2

Add Fuel And Mileage

Include annual mileage plus fuel or charging details so variable costs are covered.

3

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.
- Ian Beevis
Co-Founder, Clean Green Cars
Ian Beevis

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.

Ian pointing to the FAQs.

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