Buying & ownership tool

EV Electric Bill Calculator

Estimate how many kWh and how much cost an EV adds to a monthly and annual household electricity bill.

Your estimate

Enter your numbers

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

Estimated monthly bill increase

$51.56

Energy used by vehicle
290 kWh
Energy drawn from wall
322.2 kWh
Estimated annual cost
$618.67
Estimated cost per mile
$0.05

Methodology

How the estimate is calculated

Monthly battery energy equals miles driven multiplied by vehicle electricity consumption. Charging loss converts that value into estimated wall energy.

The bill estimate applies the entered per-kWh rate and any EV-specific monthly fee.

Important assumptions

  • Use the electricity rate that applies when the EV charges.
  • The estimate does not model tiered rates, demand charges, or unrelated household electricity use.

Common questions

What to know about this estimate

Does this include my existing household electricity use?

No. It estimates the additional energy associated with EV charging.

What if my utility has time-of-use pricing?

Use the time-of-use calculator to model how much charging occurs at each rate.

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