How Do You Calculate Watts Per Hour. Electricity bill calculation Energy consumption calculation. Multiply the wattage by the number of hours the device runs during an average day.
The calculation for this scenario is. The wattage tells you the rate energy is consumed while the appliance is active. 20W x 4 hours 80 daily watt hours Wh consumption.
So 100 W is 01 kW 60 W is 006 kW and 1500 W is 15 kW.
Last enter the information into the formula or calculator above. So 100 W is 01 kW 60 W is 006 kW and 1500 W is 15 kW. The energy E in kilowatt-hours kWh per day is equal to the power P in watts W times number of usage hours per day t divided by 1000 watts per. The wattage is often listed on your electrical devices.
