Energy Bill Math

Electric vehicles

EV Home Charging Cost Calculator

Estimate the cost of charging an electric vehicle at home, including charging losses and monthly driving.

miles
kWh/100 mi

Use your dashboard average or the vehicle's official efficiency figure.

$/kWh
%

This accounts for energy lost between the wall and battery.

Your estimate

Estimated monthly charging cost

$56.67

Estimated annual cost

$680.00

Electricity from the wall

333.3 kWh/mo

Energy cost per mile

$0.06/mi

Charging losses vary by vehicle, charger, temperature, battery conditioning, and charging speed. Check your utility for time-of-use rates.

Runs in your browser Use your own utility rate

Calculation method

How this estimate is calculated

Wall energy = miles × (kWh per 100 miles ÷ 100) ÷ charging efficiency
U.S. Department of Energy: Charging Electric Vehicles at Home

Important assumptions

What can change the result

  • Vehicle efficiency is entered as kWh per 100 miles.
  • Charging efficiency represents energy delivered to the battery divided by energy drawn from the wall.
  • The utility rate does not change by time of day unless you enter the applicable rate.

For the most useful estimate, use measurements from a plug-in energy monitor, connected charger, vehicle dashboard, or product energy label whenever available.

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