To calculate how much it will cost you per mile based purely on the mile per kWh and the cost of your electricity, we need to know two things.

The first is the official figures per mile each Tesla will do, and the second how much you are paying for your electricity.

I can give you the official miles per kWh for each Tesla (see table below), but we don’t know how much you are paying per kWh for your electricity as they will be all different. So we have provide you with a calculator to work it out.

The miles per kWh calculator below will work out how much it will cost you based on the Tesla you own and the cost of your electricity per kWh, you can even compare how much you will be saving compared with a gas vehicle.

 
Our calculator needs two sets of data to work out how much cheaper it is to run a Tesla compared to a gas vehicle.

Miles per gallon for gas vehicle
Cost per gallon of gas
Miles per kWh (Se table below)
Cost per kWh of electricity
Simply enter the data you have collected below and out calculator will work out how much it will cost you to drive 100 miles in both vehicles.

The second way to work out how much it will cost you per mile to run your Tesla is to look at not just the cost of electricity but also the cost of purchase.

One of the calculations I like to use when comparing one electric vehicle with another to determine what kind of value I’m getting is the cost per mile of range. This number is easily calculated when you divide the cost of the vehicle by the range of the vehicle.

 
Now obviously, this is not the most important factor when you are ready to purchase a vehicle, but I do think it is an important way to see how much of value you are getting out of your electric car.

This calculation does not account for a premium feature, technology, performance, and design differences, but it does help compare cars at a basic level. First of all, I’d like to look at the current Tesla models that you can buy this year or we’ll be able to buy very soon.

First of all, we have the Model S which is available in two variants. The long-range all-wheel-drive model which comes out at $79,990 at its base price, and gives you three hundred and seventy-three miles of range.

And then you have the performance all-wheel-drive model which is $99,990 and gives you three hundred and forty-eight miles of range. When you do the calculation the long-range model gives you the lowest cost per mile of range at $214.45.

When I did the calculation for the Model 3 I was surprised at the long-range all-wheel-drive model, coming in at $48,990 with 322 miles of range. It was the best value in the lineup.