Free UK car tools
The running-cost questions everyone has before they buy — road tax, ULEZ, MOT dates, EV charging, import duty. Every figure checked against GOV.UK. No sign-up, no email address, no catch.
Car Tax Calculator
Annual VED for any UK car. The registration year decides everything — a car in the cheapest 2001–2017 band pays £20 a year, where the same car registered after 1 April 2017 pays £200.
OpenULEZ & Clean Air Zone Checker
Eight charging zones operate in England and only three charge private cars. Check yours, see what a year would cost, and find the London Congestion Charge and Scotland’s LEZs alongside it.
OpenMOT Due Date Checker
When the next MOT falls due, and the earliest you can test without losing your renewal date. Plus a link to every MOT a car has ever had.
OpenEV vs Petrol Running Costs
What an electric car actually costs to run against a petrol one — and why the answer turns almost entirely on whether you can charge at home.
OpenElectric Car Grant Calculator
How much the UK Electric Car Grant takes off a new EV, the £37,000 price cap, and why the band is not something you can read off the spec sheet.
OpenImport Cost Calculator
Duty and VAT on importing a car. Brexit did not make EU cars duty-free — the 10% still applies unless the car was actually built there.
OpenPCP Calculator & Half-Rule Checker
Monthly payments on a PCP or HP agreement, and the point at which you can hand the car back. The balloon counts towards the half rule but not towards your monthly payments, so that point falls much later than halfway through the term.
OpenEV Charging Cost Calculator
What charging actually costs you, from the Ofgem-capped rate, a smart overnight tariff or a public rapid charger. At public rapid prices an electric car can cost more per mile than petrol.
OpenCar Affordability Calculator
What a car costs to keep on the road, built from road tax, fuel, insurance and the MOT rather than a percentage-of-income rule. No UK body publishes one of those, so this tool does not use one.
OpenFinance Calculator
Monthly repayments for PCP, hire purchase or a personal loan, with the total interest laid out so you can see what the deal really costs.
OpenValue My Car
What your car is worth today, based on what comparable cars are actually listed for right now.
OpenWhy we show our workings
Every rate in these tools carries the date it was checked and a link to the GOV.UK page it came from. Car tax in particular changes every April, and a calculator running last year's numbers is worse than no calculator — it gives you a figure confident enough to budget against and wrong enough to matter.