Charging tool

EV Miles Added Per Hour Calculator

Estimate how many miles of driving energy an EV charger adds per hour from charging power, efficiency, and loss.

Your estimate

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Defaults are examples. Replace them with your vehicle, energy price, and driving information.

Estimated miles added per hour

29.8 mi

Usable energy added per hour
8.64 kWh

This estimates driving energy added. Weather, speed, HVAC use, and driving conditions affect actual range.

Methodology

How the estimate is calculated

Usable energy per hour is charger power multiplied by one minus the charging-loss percentage.

Miles added per hour divides usable charging energy by the vehicle's electricity use per mile.

Important assumptions

  • The estimate describes energy added, not a guaranteed dashboard-range increase.
  • Weather, speed, HVAC use, and driving conditions affect the miles ultimately delivered by each kWh.

Common questions

What to know about this estimate

Why does vehicle efficiency matter?

A more efficient EV travels farther on the same amount of charging energy.

Is this the same as charging power?

No. Charging power is energy transferred per hour; miles added also depends on how much energy the vehicle uses per mile.

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