Calculate the cost to charge your EV from a current charge level to a target level, accounting for charging losses, plus an optional cost-per-mile estimate.
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Charging an EV isn't perfectly efficient, some energy is lost as heat in the charging cable, onboard charger and battery management system. This calculator applies a charger efficiency percentage (commonly around 85-90% for AC home charging) to the energy actually added to your battery, to estimate the larger amount of energy actually drawn from, and billed by, the grid.
If you enter your vehicle's rated efficiency in miles per kWh (found in your owner's manual or EPA rating), this calculator estimates the miles that charging session added and the resulting cost per mile, letting you compare running costs directly against a gas vehicle's cost-per-mile from our Fuel Cost Calculator.
Level 1/2 AC home charging is commonly estimated around 85-90% efficient. DC fast charging efficiency varies by station and vehicle but is often similar or slightly lower. Check your utility or vehicle manufacturer's guidance for a more precise figure.
No, this calculator uses a single flat electricity rate you provide. If your utility charges different rates by time of day, use the rate that applies during your actual charging window for the most accurate estimate.
Yes, generally. Public DC fast charging networks typically charge a premium per kWh compared to residential electricity rates, so home charging is usually the cheaper option when available.
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