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Kilometers per kWh to MPGe Converter

Convert electric vehicle efficiency from kilometers per kilowatt-hour to miles per gallon equivalent (MPGe).

What this tool does

Convert electric vehicle efficiency from kilometers per kilowatt-hour to miles per gallon equivalent (MPGe). Type an amount in kilometers per kilowatt-hour, choose the units, and the tool converts it to miles per gallon gasoline equivalent (MPGe). It offers 5 electric vehicle efficiency units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one: Kilometer per kilowatt-hour, Mile per kilowatt-hour, Mile per gallon gasoline equivalent (MPGe), Kilowatt-hour per 100 kilometers, Kilowatt-hour per 100 miles. Starts as Kilometer per kilowatt-hour.
  • To: Choose one of the same 5 units as "From". Starts as Mile per gallon gasoline equivalent (MPGe).

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from kilometers per kilowatt-hour to miles per gallon gasoline equivalent (MPGe):

  • 1 km/kWh ≈ 20.943316 MPGe
  • 5 km/kWh ≈ 104.71658 MPGe
  • 10 km/kWh ≈ 209.43316 MPGe
  • 50 km/kWh ≈ 1,047.165802 MPGe
  • 100 km/kWh ≈ 2,094.331603 MPGe

Multiply the number of kilometers per kilowatt-hour by about 20.943316 to get miles per gallon gasoline equivalent (MPGe). The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.

Sources: Kilometer per kilowatt-hour: exact by definition. Mile per gallon gasoline equivalent (MPGe): 40 CFR 600.002 (US EPA).

Limitations

  • Converts the unit of an efficiency figure only. It does not estimate range, charging losses or running cost.
  • MPGe is based on the EPA figure of 33.705 kWh per US gallon of gasoline. Other sources may round it to 33.7.

FAQs

Q: How do I convert km/kWh to MPGe?
A: Enter the value, keep kilometers per kilowatt-hour (km/kWh) in the From box and miles per gallon gasoline equivalent (MPGe) in the To box. For example, 5 km/kWh is about 104.7 MPGe.
Q: Does a higher number mean a more efficient car?
A: Yes. Both units count distance per unit of energy, so a higher figure means more distance for the same energy.
Q: How is MPGe defined here?
A: MPGe uses the US EPA definition (40 CFR 600.002): one US gallon of gasoline is equivalent to 33.705 kWh of electricity. It is a US gallon, not an imperial gallon.
Q: Can I convert from MPGe to km/kWh instead?
A: Yes. Swap the From and To boxes. For example, 5 MPGe is about 0.2387 km/kWh.

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