MPGe Formula:
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MPGe (Miles Per Gallon Equivalent) is a metric that compares the energy consumption of electric vehicles to the fuel economy of conventional gasoline-powered vehicles. It helps consumers understand how efficiently an electric vehicle uses energy compared to traditional cars.
The calculator uses the MPGe formula:
Where:
Explanation: The equation converts electric energy consumption into an equivalent miles-per-gallon rating for easier comparison with gasoline vehicles.
Details: MPGe allows consumers to compare the energy efficiency of electric vehicles with traditional gasoline vehicles, helping make informed purchasing decisions and understand operating costs.
Tips: Enter the vehicle's energy consumption in kWh per mile (typically between 0.2 and 0.5 kWh/mile for most EVs). The value must be greater than 0.
Q1: What is a good MPGe rating?
A: Most modern EVs achieve 90-130 MPGe. Higher numbers indicate better efficiency.
Q2: How does MPGe compare to regular MPG?
A: MPGe allows direct comparison between electric and gasoline vehicles by converting electricity use to equivalent gallons of gasoline.
Q3: Why is 33.7 kWh used as the equivalent?
A: This is the energy content of one gallon of gasoline as defined by the EPA for standardization.
Q4: Can I calculate MPGe from miles per kWh?
A: Yes, first convert miles per kWh to kWh per mile (1/miles per kWh), then use the formula.
Q5: Does MPGe account for charging losses?
A: No, MPGe typically uses wall-to-wheels efficiency. Some manufacturers may provide battery-to-wheels numbers which will be higher.