Math and Physics Calculators

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Calculate Energy in kWh

kWh = kilowatt-hours. A device with one kilowatt power comsumes 1 kWh per hour. 1 kWh = 1000 Wh.

energy = power * time
E = P * t

energy: kilowatt-hours
power: watts

Please enter two values and the time unit, the third value will be calculated.

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