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Gas vs. EV energy-cost calculator

Gas or electric. Put a number on it.

Compare the cost of covering the same miles with gasoline or electricity. Use your own rates to see which costs less in your situation.

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01 / Your inputs

Make it your own.

Start with the example below. Change any value to update your estimate.

Calculator inputs
miles / year

US mpg

Use your real-world average, if you know it.

$ / US gal

Enter the price you expect to pay. Example prices are not live rates.

kWh / 100 mi

Use the kWh/100 miles figure from the EPA label; it includes charging losses.

$ / kWh

For 16¢ per kWh, enter 0.16. Use your home or public charging rate.

Quick try

Calculated in your browser. Your entries are not submitted or saved.

02 / Your estimate

Example

EV costs less per year

$824.00

Energy cost difference · 12,000 miles per year

Gas / year$1,400.00
EV / year$576.00
Gas / year
$1,400.00
EV / year
$576.00
Gas / mile
11.67¢
EV / mile
4.8¢

At these efficiencies and gas price, energy cost per mile breaks even at $0.39 per kWh (38.89¢).

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03 / See the bigger picture

The energy gap over time

Cumulative energy costs with unchanged annual mileage, efficiency and prices. This is a scenario, not a price forecast or ownership-cost comparison.

The energy gap over time. At 12 months: Gasoline $1,400.00; Electricity $576.00. Cumulative energy costs with unchanged annual mileage, efficiency and prices. This is a scenario, not a price forecast or ownership-cost comparison.Cost (USD)$0$385$770$1,155$1,540036912Months

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Gasoline
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Electricity
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Gas vs. EV energy-cost calculator

Cost breakdown

Cost projection

Your inputs

Method & assumptions

Gas cost per mile = gas price ÷ MPG. EV cost per mile = kWh per 100 miles ÷ 100 × electricity rate. Multiply each by annual miles to compare yearly energy costs.

Energy costs only, using constant efficiency and prices. Excludes vehicle purchase price, incentives, financing, insurance, maintenance, charger installation and charging-session fees. EPA label electricity consumption includes charging losses; an in-car display may not.

USD and U.S. gallons. Based on your entries, not live prices. Figures are estimates; displayed amounts are rounded.

About this report

Scope & limitations. Estimates reflect the inputs shown, including unchanged examples. Actual costs can differ. Prices are not live quotes. Read the method and assumptions alongside the results.

Independent information. RecallWire is an independent publisher, not a government agency. Confirm vehicle-specific guidance with official sources.

Privacy & affiliate disclosure. Prepared in your browser without submitting or storing inputs. RecallWire may earn commissions from website affiliate links; this report contains no paid placements.

Prepared with RecallWirerecallwire.news/tools/gas-vs-ev-cost-calculator/

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Behind the numbers

How the gas vs. ev calculation works

Gas cost per mile = gas price ÷ MPG. EV cost per mile = kWh per 100 miles ÷ 100 × electricity rate. Multiply each by annual miles to compare yearly energy costs.

A worked example

At 12,000 miles per year, 30 MPG and $3.50 per gallon, gasoline costs $1,400. An EV using 30 kWh per 100 miles at $0.16 per kWh costs $576. In this example, EV energy costs are $824 lower per year.

A little more clarity

Gas vs. EV questions

Is charging an EV always cheaper than buying gas?

No. The result depends on the vehicle efficiency, gas price and electricity rate you enter. Public fast charging can have a different rate from home charging. Try both rates to compare your own scenarios.

Which EV efficiency number should I enter?

Use electricity consumption in kWh per 100 miles, rather than MPGe. The EPA fuel-economy label includes electricity lost during charging. If you enter an in-car consumption figure instead, you may underestimate electricity purchased.

How do I account for home and public charging?

Use an energy-weighted average price. For example, if 80% of purchased electricity costs $0.16/kWh and 20% costs $0.50/kWh, enter $0.228/kWh. Session, idle and subscription fees are not included.

Does this tell me which vehicle is cheaper to own?

No. It compares gasoline and electricity spending over the same distance. A full ownership comparison would also need purchase price, depreciation, insurance, maintenance and other costs.

From the RecallWire desk

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