The “average” cost of using a public slow/fast EV charger (49kW or less) is 57p/kWh, and 80p/kWh for a rapid/ultra-rapid (50kW+) charger.
At 3.5 miles per kWh it will cost you between 16p and 22p per mile.
The average petrol car costs between 12p and 14p per mile.
