Calculate charging time, electricity cost, and range for Level 1, Level 2, and DC fast charging.
EV Charging Calculator connects a requested battery charge increase with charger power, electricity price, and vehicle efficiency to estimate elapsed charging time, energy cost, and additional driving range. It supports comparisons among Level 1, Level 2, and DC fast charging. The result is a planning estimate rather than a promised session duration. The most common surprise is that a charger's advertised power is not necessarily the power the vehicle accepts, especially when DC fast charging slows as the battery approaches full.
The requested change in state of charge determines how much battery energy must be added. For example, a 30 percentage-point increase represents 30 percent of the battery capacity. Charging time relates that energy requirement to the power associated with the selected charging option. Level 1, Level 2, and DC fast charging represent substantially different power ranges and therefore different estimated times.
The cost estimate applies the entered electricity price to the energy required for the charge. The range estimate converts added battery energy into distance using the vehicle efficiency value or assumption represented in the calculation. These outputs describe the selected charge interval, not necessarily a complete zero-to-full charge, so the starting and target percentages must be interpreted carefully.
The calculation uses a charging-power figure as a planning input, but real power can vary throughout the session. The vehicle may accept less than the station rating, and DC fast charging usually reduces power as state of charge rises. Cold or hot batteries, shared station capacity, battery conditioning, and charging losses can also extend the session.
Not necessarily. The result estimates energy cost from the electricity price represented in the inputs. A public network may add connection, session, parking, idle, membership, or time-based fees. Home charging can also draw more energy from the wall than reaches the battery. If those losses or fees are not represented, the answer is no.
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