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EV cost calculator

Know what the energy in your next charge may cost.

Enter your battery, state of charge, rate and efficiency to separate energy delivered to the battery from energy drawn from the grid.

Charging losses includedYour electricity rateSession and annual views
Editable assumptions

Charging session estimate

Estimated session cost$8.50
Energy added to battery45 kWh
Energy drawn from grid50 kWh
Estimated charging loss5 kWh
Cost per 100 miles$5.48
Estimated annual cost$657.60
Your rate$8.50$0.17 per kWh
Example public rate$23.50$0.45/kWh + $1 session fee

Charging losses vary with the vehicle, temperature, state of charge and equipment. Enter the rate from your utility or charging provider; the comparison rate is illustrative.

Results use a transparent simplified model and update as you type.
Calculation guide

How EV charging cost is estimated

Battery energy added equals battery capacity multiplied by the change in state of charge. Dividing that energy by charging efficiency estimates the energy drawn from the grid; your electricity rate and optional provider fees produce the session estimate.

Use the rate you actually pay

Utility time-of-use rates and public-network prices vary. Enter the applicable per-kWh rate and any session or time fee rather than relying on a national average.