About
This calculator is built to give UK drivers a clearer picture of monthly and annual car running costs before they buy.
What this site does
The calculator combines your own inputs with locally stored vehicle data to estimate fuel, tax, servicing, tyres, brakes and a repair reserve.
You can use it as a quick comparison tool between different makes, models, years and variants without needing to sign up or submit personal details.
How the estimates work
Where the dataset includes MPG, fuel type, engine size, CO2 and estimated tax information, those fields can be filled automatically for the selected vehicle.
Insurance, finance and some maintenance assumptions stay editable so you can make the result closer to your own situation.
What it is not
This is not financial advice, an insurance quote, a tax checker or a vehicle history service.
Figures are intended as a planning tool so you can sense-check affordability before making a decision.