Home charging cost calculator
Your battery, your tariff, your mileage: the real cost of charging at home, in pounds.
A 60kWh battery charged from 20% to 80% adds 36kWh. At the July 2026 price cap rate of about 26.11p/kWh that costs about £9.40; on a typical EV off-peak rate of 8p/kWh it costs about £2.88. Use the tool below for your own car, tariff and mileage.
Assumptions and sources
| Constant | Value | Source (as of July 2026) |
|---|---|---|
| Standard variable electricity rate | 26.11p/kWh | Ofgem price cap, Q3 2026 (1 July to 30 September 2026) |
| Typical EV off-peak rate | 8p/kWh | Intelligent Octopus Go and rival EV tariffs, July 2026. Ranges 7-9.5p by supplier and region |
| EV efficiency | 3.5 miles/kWh | Typical real-world family EV figure; efficient cars reach 4.5 mi/kWh (ev-database.org) |
| Petrol price | 152.5p/litre | RAC Fuel Watch, UK average unleaded, July 2026 |
| Petrol car efficiency | 42mpg | Typical real-world family petrol car |
This tool is a guide, not a quote. Your tariff rates depend on your region and supplier; your car's efficiency depends on temperature, speed and driving style. Figures correct as of 18 July 2026 and reviewed quarterly.
For the full breakdown of where these numbers come from, read how much it costs to charge an electric car at home, or browse all our costs and tariffs guides.