A kilowatt is equivalent to 1000 watts so this step converts your answer from watt hours into kilowatt hours. The energy E in kilowatt-hour kWh is equal to the power P in watts W times the time period t in hours hr divided by 1000. KWh to watts calculator Watts to kWh calculation.
Calculation of kWh to Watts P W 1000 x E kWh t hr which means that the power in watts is calculated by multiplying 1000 by the energy in kilowatts and dividing the results by the time in hours.
The power P in watts W is equal to 1000 times the energy E in kilowatt-hour kWh divided by the time period t in hours hr. Enter electric appliance in the dropdown menu or enter manual wattage rating in watts or kilowatts kW and the daily usage of the device in hours. 1000 For example. 1250 watt hours day 1000 watts 1 kilowatt 125 kilowatt hours per day.