How much does it cost to charge an electric car?

How much does it actually cost to charge an electric car? Well that’s like asking how long it takes to charge an electric car, or the length of a piece of string. The simple answer to this question is “it depends.” Which is not at all helpful if you’re trying to figure out how to compare the running costs of a combustion engine car against one of the best electric cars.

Fortunately it’s not all that difficult to figure it out. Much like how a gas tank can only hold a finite amount of gas, an electric car battery is only able to hold so much power. And most automakers tend to advertise th...