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Electric Vehicle Charging Time and Cost Calculator

Time = (kWh needed) / charger power; Cost = kWh × $ / kWh.

Estimate EV charging time and electricity cost from battery size, current and target state-of-charge, charger power (kW), and electricity rate. Reports the kWh delivered, charging hours, and total cost.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

kWh
%
%
kW
$ / kWh

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

kWh = battery · (target − current) / 100; hours = kWh / charger_kw; cost = kWh · rate.

In depth

Estimate EV charging time and electricity cost from battery size, current and target state-of-charge, charger power (kW), and electricity rate. Reports the kWh delivered, charging hours, and total cost.