EV vs ICE Economics

EV vs Gas Car Fuel Cost Comparison Calculator

Prospective EV buyers calculating total cost of ownership (TCO). Calculates cost per mile, monthly fuel expenses, and annual dollar savings of driving an Electric Vehicle compared to an internal combustion engine vehicle.

EV vs Gas Car Fuel Cost Comparison Calculator
Miles/Yr
$/Gallon
MPG
$/kWh
Calculated Result
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Instant Calculation
Engineering Output
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Auxiliary Output
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Step-by-Step Derivation ▼ Show Steps
Governing Formula Verified Physics
EV Cost/Mile = (kWh/100mi / 100) × Rate  |  Gas Cost/Mile = ($/Gal) / MPG

Calculations adhere to standard electrical engineering physics and National Electrical Code (NFPA 70) regulations.

Engineering Principles & Calculations

This calculator uses the exact mathematical relationships between Annual Mileage, Gas Price ($/Gallon), Gas Car Fuel Economy (MPG), Home Electricity Rate ($/kWh), EV Efficiency (miles/kWh or kWh/100mi) to determine EV Cost per Mile ($), Gas Cost per Mile ($), Annual Savings ($), 5-Year Fuel Savings ($). In practical installations, factors such as ambient raceway temperature, harmonic distortion, duty cycle continuous operation, and conductor impedance must be accounted for by a certified electrician.

Calculates cost per mile, monthly fuel expenses, and annual dollar savings of driving an Electric Vehicle compared to an internal combustion engine vehicle.

Typical Application & Industry Guidelines

Prospective EV buyers calculating total cost of ownership (TCO).

Reference Matrix

EV vs Gas Car Fuel Cost Comparison Calculator Benchmark Lookup Table

Annual MilesGas Car Cost (28 MPG @ .50)EV Cost (Home .15/kWh)Annual Fuel Savings
8,000 Miles$1,000 / year$336 / year$664 / year Saved
12,000 Miles (Avg)$1,500 / year$504 / year$996 / year Saved
15,000 Miles$1,875 / year$630 / year$1,245 / year Saved
20,000 Miles (Commuter)$2,500 / year$840 / year$1,660 / year Saved
FAQ

Frequently Asked Questions

How much money does an electric vehicle save on fuel? +
Driving an EV charged at home costs roughly $0.04 to $0.05 per mile, compared to $0.12 to $0.15 per mile for a 28 MPG gasoline vehicle, saving $1,000 to $1,500 every 12,000 miles.
What is the equivalent cost per gallon for charging an EV? +
At an average electricity rate of $0.15/kWh, charging an EV is equivalent to paying approximately $1.15 to $1.30 per gallon of gasoline.
Are public DC Fast Chargers more expensive than home charging? +
Yes. Public fast-charging networks typically bill $0.35 to $0.50 per kWh, which approaches gasoline cost per mile. Over 85% of EV charging is done at home overnight.

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