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how to find the kwh. To calculate kWh we multiply the power in watts by the number of hours and then divide by 1000 to get kWh. Expressed in the standard unit of energy in the International System of Units SI the joule symbol J it is equal to 3600 kilojoules 36 MJ.
Its energy usage is 006 kW 180 hoursmonth 108 kilowatt-hours per month. The number of kWh is then be multiplied by the price per kilowatt hour as detailed on your gas bill. Usually the device will have a label that includes kW information.
For example you might type in 05509.
Thus to convert watts to kilowatt-hours multiply the power in watts by the number of hours then divide by 1000. Conversion factors from Department for Business Energy and Industrial Strategy. Click the calculate button to determine the daily monthly and annual power usage or energy consumption in kWh. Find the RIGHT energy company and your best electricity plan in 4 simple steps.