Calculation worksheet
EV charging power
Estimate single-phase AC charging power from voltage and charging current.
Enter your values and select Calculate to see a step-by-step result.
ReferenceElectrical arithmetic: kW = V × A × power factor ÷ 1,000; DOE Alternative Fuels Data Center charging resources
Single-phase AC estimate only. Actual charging is limited by the EVSE, vehicle onboard charger, available supply, and any load management. This does not size a breaker, conductor, feeder, or service. Resource: https://afdc.energy.gov/fuels/electricity-stations