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EV time calculator

Compare charging speeds with the bottleneck made clear.

The effective power is the lower of the charger output and the vehicle’s charging limit, with efficiency applied to the grid energy required.

Minutes and finish timeVehicle power limitCharger comparison
Editable assumptions

Charging duration estimate

Estimated charging time4 hr 33 min
Effective charging power11 kW
Energy added45 kWh
Grid energy50 kWh
Finish if started now1:15 AM
Estimated energy cost$8.50
Level 1 · 1.4 kW35h 43m
Level 2 · 7.7 kW6h 30m
Level 2 · 11.5 kW4h 33m
DC fast · 150 kW4h 33m

This constant-power estimate is useful for AC charging. DC fast-charging power usually tapers as the battery fills and changes with temperature and station conditions, so real DC sessions can take longer.

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

Why real charging time can differ

The constant-power calculation divides estimated grid energy by effective charging power. It is most useful for rough AC charging comparisons.

DC fast charging is not constant

A fast-charge session normally tapers as state of charge rises. Battery temperature, preconditioning, charger sharing and vehicle software also affect power. Without a verified vehicle-specific curve, the result remains a transparent estimate rather than a promise.