Home energy calculators
New: free, sourced calculators for solar panels, heat pumps, home batteries, small wind turbines and EV tariffs.
See the home-energy tools →Free UK EV cost calculator
What does an electric car really cost to run in the UK?
Enter your mileage, your home electricity rate and how often you would use public chargers. In about a minute you will see EV vs petrol costs over 3, 4, 5 and 7 years, including energy, servicing, insurance and depreciation.
- Your numbers, not ours. Every rate is editable, from pence per kWh to insurance quotes.
- Honest about public charging. Split your miles between home and public chargers and see the difference straight away.
- The whole cost, not just fuel. Servicing, insurance and depreciation are included, so the answer can go either way.
No sign-up, no tracking or ad cookies. Works for the UK, Guernsey, Jersey and other markets.
Guides to help you decide
Short, sourced and dated. Read them alongside the calculator.
UK off-peak EV tariffs compared
How UK EV tariffs work, the rates on supplier pages today, and a checklist for choosing one.
Read the tariff guide →Home charger costs
What a wallbox costs to install, what pushes quotes up, and the grants of up to £500 that remain.
Read the charger guide →EV winter range
How much range you lose in the cold according to real-world data, and what actually helps.
Read the winter guide →
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EV vs petrol: what actually drives cost
Why home tariffs and depreciation matter more than the "fuel is free" slogan.
Public charging reality check
When public charging is fine, and when it wipes out your EV savings.
Charging an EV in Guernsey and the Channel Islands
Guernsey Electricity tariffs, public chargers and Jersey's Evolve network.
How much does it cost to charge an EV at home?
Cost per charge and per mile at the price cap and on EV tariffs.
Home charging basics
Wallbox vs 3-pin, what your home needs, and questions for installers.
Granny charger (3-pin plug) charging
How long it takes, what it costs, and how to use one safely.
Electric car tax (VED) in 2026/27
The £200 standard rate, the £440 supplement over £50,000, and planned eVED.
Road trip charging
How to plan long-distance stops so rapid charging is a coffee break, not a gamble.
How it works
Three steps, all in your browser.
Pick your country and cars
Choose an EV. A comparable petrol or hybrid model is suggested, and you can change it.
Set your real rates
Annual miles, home tariff, public-charging share, fuel price, insurance and depreciation.
See and share the result
Totals for 3, 4, 5 and 7 years with a breakdown. Copy a link that keeps your inputs.
Compare public charger prices: Prices change, check before you charge. The price shown in the operator’s app or on the charger is the one you pay.