Free EV charging calculators for UK drivers
All our calculators are free to use, require no sign-up, and are built specifically for UK electricity rates, UK EVs, and UK grants. Get a reliable estimate in seconds — built on current UK electricity rates and real EV battery data.
How long will your EV take to charge? Select your car, your charger, and your start and end levels — get an estimated time plus energy and cost breakdown.
Use Calculator →What does it cost to charge your EV at home? Enter your tariff rate and see an estimated cost per charge, per week, and per year.
Use Calculator →How much could you save by switching from petrol to electric? Enter your annual mileage and current fuel costs to see your estimated yearly saving.
Use Calculator →How much could you save by switching to Octopus Go, Intelligent Octopus, or another EV smart tariff? Compare overnight rates against your current deal.
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