Electrical power calculation

calculator and formula.

How to calculate active and apparent electric power, current, and energy, in three-phase and single phase circuit.


  • Go to electrical power calculator
  • Hydroelectricity

    Assessment of hydro-power and hydroelectricity potential

    Free online calculation of active and apparent power from hydroelectric systems and turbines.


  • Go to hydroelectricity calculator
  • Wind power calculation- energy wind turbines

    Wind power and energy

    Assessment of wind power and energy

    Find how to calculate wind energy and wind power for wind-turbines.




  • Go to wind power calculator

  • Genset power calculation

    Calculator and formula.

    How to calculate active and apparent electric power, current, and energy, of diesel power generator.


  • Go to Genset, diesel engine calculator
  • hot water heater consumption

    Hot water electricity consumption calculation

    Calculation of energy to heat water.

    Free online calculation of hot water heater consumption.


  • Go to hot water heating calculator
  • battery storage calculation- energy-capacity

    Battery and storage calculator

    Battery power and energy calculator.

    Find how to calculate battery capacity, c-rate, relation between time of charge or discharge and current.

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  • So what's this all about?

    This website will help you to calculate output power and energy of various sources of energy. It presents multiples free on-line calculators to get a quick assessment of power and energy for renewable and non renewable sources of power.

    You will also find tools and calculators for energy savings and energy bill management.