Commuting by e-bike instead of car can save hundreds of dollars a year on energy alone, because charging a battery costs pennies per trip. Enter your distance, your car’s fuel economy and local prices to see your own yearly saving.
E-bike vs Car Commute Savings Calculator
Compare the yearly energy cost of commuting by e-bike and by car.
How much can you save by commuting on an e-bike?
With the calculator's default values, an 8-mile one-way commute, 5 days a week for 48 weeks, adds up to 3,840 miles a year. In a car averaging 27 mpg with gas at $4.35 a gallon, that costs about $619 in fuel. The same miles on an e-bike using 18Wh per mile cost about $14 in electricity. The energy saving is about $605 a year.
Your result depends heavily on distance, fuel prices and your car's efficiency, so change the inputs to match your own commute.
Where do the default numbers come from?
We set the defaults from recent public data so the first result is realistic. You should still replace them with your own figures.
| Input | Default | Source |
|---|---|---|
| Gas price | $4.35 per gallon | EIA U.S. average regular gasoline, week of October 5, 2026: $4.354 |
| Car fuel economy | 27 mpg | EPA real-world average for new model-year 2024 vehicles: 27.2 mpg |
| Electricity price | 17 cents per kWh | EIA U.S. average residential price for 2025: 17.3 cents |
| E-bike energy use | 18 Wh per mile | Example value inside the 5 to 25 Wh/mile spread implied by Gazelle's range figures |
| Charger efficiency | 85% | Our estimate; manufacturers rarely publish it |
Gas prices come from the EIA gasoline and diesel price update, and electricity prices from the EIA Short-Term Energy Outlook, which forecasts 18.2 cents per kWh for 2026. The fuel economy figure is from the U.S. Environmental Protection Agency's Automotive Trends report. Older cars and SUVs often use more fuel than this new-vehicle average.
How does the savings calculator work?
It first works out your yearly commute distance, then prices each mile for both vehicles.
Yearly distance = One-way distance × 2 × days per week × weeks per year
A car mile costs the fuel price divided by your mpg (in metric, litres per 100km ÷ 100 × price per litre). An e-bike mile costs its energy use in kWh, plus charger losses, multiplied by your electricity price. The difference, multiplied by your yearly distance, is the saving.
On the default example, one round trip costs about $2.58 by car and about 6 cents by e-bike. To find your bike's real energy use, measure a ride using the method in the e-bike range calculator.
What does this calculator leave out?
It compares fuel and electricity only. It doesn't include the price of the e-bike, battery replacement, servicing, tyres, insurance, parking, tolls or car wear, and those can change the full picture in either direction.
Battery replacement is the e-bike's biggest running cost after purchase. The e-bike battery life calculator estimates how many years your battery should last at your commuting distance, so you can spread that cost over the years.
Is commuting by e-bike practical for my distance?
Check your round trip against your battery's range first. If an 8-mile commute is 16 miles there and back, most batteries cover it with charge to spare, and you could charge every other day or only at home.
Weather, secure parking and a safe route also decide whether an e-bike commute works day to day. Run the numbers for the days you'd realistically ride, not every working day, for a saving you can count on.
Frequently Asked Questions
Does the calculator include the cost of buying an e-bike?
No. It compares energy costs only. Divide the e-bike's price by your yearly saving to see roughly how many years of energy savings it would take to cover it.
What if I drive an electric car?
Enter your electric car's cost per mile as an equivalent fuel figure, or compare its kWh per mile with the e-bike's. An e-bike still uses far less energy per mile than a car.
Can I use kilometres and litres?
Yes. Switch the units to metric, enter fuel economy in litres per 100km and fuel price per litre.
Why does the saving change so much with gas prices?
Almost all of the difference comes from the car's fuel bill. Charging an e-bike costs so little that electricity prices barely move the result.
How accurate are the default values?
They reflect U.S. averages from EIA and EPA data at the time of writing. Your local prices and your own car will give a more accurate result.