Gas vs Electric: How to calculate the energy cost per mile

Electric cars are everywhere now.
Gasoline powered cars measure their energy efficiency with miles per gallon (mpg).
But how do we calculate the energy cost per mile for electric cars?

In this video I will explain a simple method to compare electric (Nissan Leaf) and gasoline (Subaru Outback) cars.

[shake]

great video!

assume you drive 10k miles per year. your electric cost will be 10k/23 = $434. your gas cost will be 10k/5.4 = $1851. you save $1400 per. however, if the car cost 10k more than ICE then that’s a 7 year return on investment. if electricity goes down due to solar and if batteries get cheaper & if gas keeps going up then the payoff period gets shorter. in california the payoff would have been a few years due to gas prices and tax credits.

[saltydogg]

Fill your vehicle with any fuel drive some distance refuel, then divide the cost by the distance. e. g. $4.50 for fuel divided by 25 miles would be 18 cents per mile.You can recalculate every time you refill your tank.

[IlovePumping]

Good formula. However, *divide (not multiply) mpg by cost per gallon to get cost per mile.