EV Charging Cost Calculator Trending

Electric vehicle charging costs depend on where and how you charge. Home charging using a 7 kW wallbox is the cheapest option at around 24-25p per kWh on a standard electricity tariff, or as low as 7-10p per kWh on an off-peak EV tariff (such as Octopus Go or Intelligent Octopus). A typical EV with a 60 kWh battery costs £14-£15 for a full charge at home on standard rates.

Public rapid chargers (50-150 kW) are significantly more expensive, typically 60-80p per kWh, while ultra-rapid chargers (150-350 kW) can cost 70-85p per kWh. Workplace charging is often free or subsidised, and some supermarket chargers offer free slow charging while you shop.

This calculator estimates your charging costs across different scenarios. It factors in your annual mileage, vehicle efficiency (miles per kWh), charging split between home and public, and your electricity tariff to give an accurate picture of running costs compared to petrol or diesel.

How much does it cost to charge an EV? Home charging (Octopus Go tariff 7p/kWh between 00:30-05:30): 60 kWh battery × 7p = £4.20 full charge. With 4 mi/kWh efficiency: 240 miles for £4.20 = 1.75p/mile. Public rapid chargers: 50-80p/kWh (e.g. Ionity, BP Pulse Rapid). 60 kWh × 60p = £36 full charge = 15p/mile. Workplace charging often free or subsidised by employer.

Best EV tariffs 2026. Octopus Go: 7-9p/kWh between 00:30-05:30 (5 hours). Octopus Intelligent: variable smart charging optimises around grid conditions. EDF GoElectric Overnight: 9p/kWh. Eon Next Drive: 6.7p/kWh. British Gas EV Tariff: 7.9p/kWh. Combined with solar panels: charge EV virtually free during sunny days. Many tariffs require smart meter — install free via your supplier.

Home vs public charging mix. Average UK EV driver: 80-90% home charging, 10-20% public. Heavy public charging negates EV savings. Tesla Supercharger network: cheapest public rapid (typically 45-55p/kWh). Long road trips: 80% home + 20% rapid public still saves 50%+ vs equivalent petrol. Apartment dwellers without home charging: EV cost-effectiveness much lower — typical 15-20p/mile public = similar to petrol.

Charger types and home install. 7kW home wallbox: £400-£800 fitted (was government grant — ended 2022). Tethered (cable attached) £50-£100 more than untethered. 22kW chargers need 3-phase power (rare in UK homes). DC rapid chargers (50-150kW) for public/commercial use. ZapMap app shows 60,000+ UK public chargers with real-time availability. New homes since June 2022 must include EV charging infrastructure.