Gas vs Electric Savings
Compare annual fuel cost of a gas car versus an electric vehicle.
About Gas vs Electric Savings
Both cars are reduced to their per-mile energy cost, then scaled to a year of driving. The difference is the annual savings from switching. Electricity is usually far cheaper per mile than gasoline, but the gap depends heavily on your gas price, electricity rate and driving volume.
Formula
Gas vs Electric Savings
Gas annual = miles / MPG x gas price; EV annual = miles / (mi per kWh) x rate
- mi per kWh
- Miles an EV covers on one kilowatt-hour of energy
Worked example
With the default values below, Gas vs Electric Savings returns Gas Annual Cost of $1,714.29. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Miles per yearminimum 0 mi
- 12,000 mi
- Gas car MPGminimum 0.1 mpg
- 28 mpg
- Gas priceminimum 0.001 $/gal
- 4 $/gal
- EV efficiencyminimum 0.1 mi/kWh
- 3.5 mi/kWh
- Electricity rateminimum 0.001 $/kWh
- 0.14 $/kWh
Results
- Gas Annual Cost
- $1,714.29
- Electric Annual Cost
- $480.00
- Annual Savings
- $1,234.29
- 5-Year Savings
- $6,171.43
Step by step
- 1Values used
- 2Gas vs Electric Savings
- 3Gas Annual Cost= 1,714.29
- 4Electric Annual Cost= 480.00
- 5Annual Savings= 1,234.29
- 65-Year Savings= 6,171.43
Assumptions and limits
- The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Gas vs Electric Savings calculated?
Gas annual = miles / MPG x gas price; EV annual = miles / (mi per kWh) x rate Both cars are reduced to their per-mile energy cost, then scaled to a year of driving. The difference is the annual savings from switching.
Why does Gas vs Electric Savings matter?
Electricity is usually far cheaper per mile than gasoline, but the gap depends heavily on your gas price, electricity rate and driving volume.
What values do I need to enter?
This calculator takes 5 inputs: Miles per year, Gas car MPG, Gas price, EV efficiency, Electricity rate. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.