I would like to know how much kilometers would some electric car travel with one kWh.

How can this be calculated?

I took a look at wikipedia's "Miles per gallon gasoline equivalent" page:

(I can not post the wikipedia link, because then my post gets blocked)

In there they use MPGe as units, but also kWh/100 miles.

Is it possible for some specific type of car for example Tesla Model S (2013) mentioned from the same wikipedia page. to calculate how many kilometers will it travel by the use of a single kWh?

Which mpg-e category would one need to take in order to calculate this?

EPA rated combined fuel economy, EPA rated city fuel economy, EPA rated highway fuel economy?

(for Tesla Model S (2013) for upper three categories: 95 mpg-e, 94 mpg-e, 97 mpg-e)

1 mile = 1.609344 kilometers

Thank you for the reply.

How can this be calculated?

I took a look at wikipedia's "Miles per gallon gasoline equivalent" page:

(I can not post the wikipedia link, because then my post gets blocked)

In there they use MPGe as units, but also kWh/100 miles.

Is it possible for some specific type of car for example Tesla Model S (2013) mentioned from the same wikipedia page. to calculate how many kilometers will it travel by the use of a single kWh?

Which mpg-e category would one need to take in order to calculate this?

EPA rated combined fuel economy, EPA rated city fuel economy, EPA rated highway fuel economy?

(for Tesla Model S (2013) for upper three categories: 95 mpg-e, 94 mpg-e, 97 mpg-e)

1 mile = 1.609344 kilometers

Thank you for the reply.

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## Comments

First, let me tell you that MPGe is not very useful. Its poorly defined and gives numbers that bear no reality. You will find this if you investigate them on most cars.

As for your question, at hyway speed, a model S will travel about 295 miles, at 70 deg F, on flat roadways on a full charge. A full charge is about 76 KWH (the other is a buffer to get to 85). So that is 3.88 miles or 6.25 Km per 1 Kwh of electricity.

Sin Gas

Is this MPG-e's inaccuracy only related to Tesla models or to any other electric car models too?

According to average MPG-e's (combined, city, highway), Tesla Model S (2013) is suppose to travel 4.717 kilometers per 1 kWh, which is far less then what real data you showed me, present:

kWh/100 miles = 3370/MPG-e

EPA rated combined fuel economy, EPA rated city fuel economy, EPA rated highway fuel economy average (from wikipedia's "Miles per gallon gasoline equivalent" page)

(95 MPG-e + 94 MPG-e + 97 MPG-e)/3 = 95.33 MPG-e

3370/95.33 MPG-e = 35.35 kWh/100 miles = 0.3535 kWh/mile = 353.5 Wh/mile

0.3535/1.609344 = 0.212 kWh/km

For 1kWh: 1/0.212 = 4.717 km

I googled a bit and found a lot of sources stating that Tesla Model S, takes 340 Wh/mile, which close to the 353.5 Wh/mile calculated above.

Then what calculation approach would you recommend for calculating how much miles/kilometers an electric car travels using 1kWh?

What I calculated was how far a Tesla would travel at a constant highway speed of 65 mph, 70 deg F, and no hills.

The EPA numbers and the MPGe numbers include 5 different driving cycles of combined city and hiway driving, which gives somewhat less.

MPGe does not seem to relate to any car I have tried to use it for. I have only used it for cars with battery and gas.

The Tesla web site has a very complete section on its web page about range for its vehicles.

Sin Gas

One US gallon of gasoline is about 36 kWh of energy and one US gallon of diesel is about 41 kWh of energy. If a gasoline car have 20 MPG (like Mercedes S class) it will go 20 miles while consuming 36 kWh. This mean it will go 1.8 miles per kWh. Tesla Model S will go about 3 miles per kWh. These numbers can be compared and relates to both ICE-cars and electric cars. It also shows that electric cars are much more efficient than ICE-cars.

Using gallon (US or UK gallon...) is just stupid then one talk about an electric car. I hope and think that the numbers for miles per kWh or kWh per mile will be used as standard for all cars (not just electric cars) in a near future. ICE-car owners would know that not only have the price at the pump gone up a lot compared to 20 years ago but the amount of energy per gallon have in fact decreased because ethanol is mixed in with the gasoline.

http://en.wikipedia.org/wiki/Tesla_Model_S

Basically it is how you drive that determines the kWh's you use up.