Calculator

EV Charging Cost Calculator

Estimate the cost of charging an electric vehicle at home per charge, per mile and per month.

How it is calculated

Energy from the wall = battery kWh × (charge to − charge from) ÷ charging efficiency. Monthly energy = miles ÷ miles per kWh ÷ efficiency. Petrol cost = miles ÷ mpg × price per litre (converted from UK gallons).

Results are estimates for planning, not bills or professional advice. For generator hookups use a changeover switch installed by a qualified electrician.

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