You can use this formula to calculate (really estimate) KWh consumption:
Wattage × Hours Used Per Day ÷ 1000 = Daily Kilowatt-hour (kWh) consumption
You can also use this formula to calculate (again really estimate) the heat output of electronics:
Watts * 3.412 = Btu/hour <i>(Note: some references out on the web use 3.413 instead of 3.412.)</i>
Last Wiki Answer Submitted: April 19, 2013 5:16 pm by Michael Tidmarsh14,060 pts.