Your EV usage
Current flat tariff
EV tariff
Preset rates are approximate and updated periodically. Always verify with your supplier.
Enter your usage and tariff details above
This calculator compares what you'd spend on EV charging under a standard flat-rate tariff versus a dedicated EV tariff with cheaper overnight rates. Enter your car's advertised max range and battery size — the tool works out your real-world consumption from there.
EV tariffs typically charge more per unit during the day, so the saving depends on how much of your total electricity use you can shift to the cheaper overnight window. If your household uses a lot of daytime electricity, factor that in separately — this tool focuses on the car charging cost only.
Preset tariff rates are approximate. Always confirm current rates with your supplier before switching.