“one killowatt gets you about 6 ish kilometers in most EV's. ”
Unit confusion in this topic!
The kilowatt is not a unit of energy. It is a unit of power - how fast energy is consumed. Analogous to a gasoline car’s gallons per hour.
The unit of electric energy is the kilowatt hour. Analogous to gas car’s gallon of gas.
Driving an electric car a kilometre requires some amount of energy. How many kilowatt hours is it? How much does a kilowatt hour (KWH) cost? This is indicated on any electricity bill. It may be ten cents plus another ten cents delivery charge.