EV charging cost calculator

Preliminary estimate

Inputs

Calculation note

This cost screen uses an entered CAD/kWh energy rate. Fixed charges, taxes, demand charges, time-of-use windows, and public-charging fees are outside this estimate.

Method

Grid energy kWh = energy added kWh / charging efficiency

Session cost = grid energy kWh x CAD per kWh

Monthly cost = session cost x sessions per month

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Formula variables

  • Energy added is the energy delivered to the vehicle battery.
  • Electricity rate is the entered energy rate in CAD/kWh.
  • Charging efficiency accounts for charger and battery losses.
  • Sessions per month scales the estimate for repeated charging.

Assumptions

  • The electricity rate is entered in Canadian dollars per kWh.
  • Charging efficiency converts delivered vehicle energy into grid energy.
  • The output does not include every fixed charge, tax, demand charge, or time-of-use condition.
  • This calculator does not model every tariff, rebate, subscription plan, or utility billing clause.

Examples

Home charging session. Adding 50 kWh at CAD 0.18/kWh and 90 percent efficiency estimates CAD 10.00 per session.

Monthly planning. Twenty similar sessions estimate about CAD 200.00 before fixed charges, taxes, and tariff details.