picture of e-bike controller

Our of curiosity, I decided to compare the actual fuel costs of driving an e-bicycle versus driving a car.

E-bicycle Costs

Using a power consumption formula I discovered at Ebikepursuits.com, and then plugged in the numbers for my e-bike’s battery.

V = voltage
Ah = Amp hours
Wh = watt hours

36 = V
12.5 Ah

36×12.5= 450 Wh

450 W= 0.45 KWh

at $.10/KWh = $.045/charge
at $.22/KwH = $.099/charge
at $.45/KwH = $.2025/charge

Depreciation should be calculated

Battery cost

approx. $400/1000 charges
$.40/charge

Total fuel and battery cost is about 45-60 cents per charge.

450 W = .0.45 KWh

Our electric rates vary quite a bit based on the time of day, ranging from 10-45 cents per KwH, which means that the price for charge ranges from 4.5 cents to 20.25 cents

But besides the fuel (electricity) cost, I also have to figure out the cost of the battery. If the manufacturer’s estimates are correct, I should get at least 600 charge cycles out of the battery, which costs $359, so the approximate pro-rated cost per charging cycle is 59.8 cents.

So added together, the cost for fuel and battery use would range from 65-80 cents per charing cycle, which would mean the e-bike has an approximate cost of 3.25-4 cents per mile.

Car Costs

The car I drive most often is a 2008 Kia Rondo (6 cyl) which average around 20 mpg (which makes for easy comparison purposes). At the present moment, the price of gas in Oklahoma City is around $2.79/gallon, which means my price per mile is 13.95 cents per mile.

Final Comparison

E-bike: 3.25-4 cents per mile
Car: 13.95 cents per mile