Calculate EV miles per kWh from a trip, plan energy and charging cost, or estimate usable-battery range with MPGe, grid loss, and efficiency scenarios.

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The usable state-of-charge window is applied separately.
Percent of grid or wall energy that does not reach the battery.

Miles Per kWh Formula

The following formula is used to calculate the miles per kWh.

MPkWh = Miles Driven / Energy Consumed (kWh)

Variables:

  • MPkWh is the miles per kWh efficiency
  • Miles Driven is the total distance driven in miles
  • Energy Consumed is the total energy used to drive the distance in kilowatt-hours (kWh)

To calculate miles per kWh, divide the miles driven by the energy consumed in kWh.

What is Miles Per kWh?

Miles per kWh is a measure of the efficiency of an electric vehicle (EV). It indicates how many miles the vehicle can travel on one kilowatt-hour of electricity. This metric is similar to miles per gallon in gasoline vehicles but specific to the energy consumption of electric vehicles. It helps to understand the cost-effectiveness and environmental impact of driving an EV.

How to Calculate Miles Per kWh?

The following steps outline how to calculate the Miles Per kWh.

  1. First, determine the total distance driven in miles.
  2. Next, determine the total energy consumed during the drive in kilowatt-hours (kWh).
  3. Use the formula MPkWh = Miles Driven / Energy Consumed (kWh).
  4. Finally, calculate the Miles Per kWh (MPkWh).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Miles Driven = 120 miles

Energy Consumed (kWh) = 24 kWh