Energy Usage Calculator
If you'd like to know the EXACT watts of the specific appliance you're going to be using, you can usually find this on the back of most appliances, under their "energy use information" and you can enter these manually.Use CUSTOM APPLIANCES to input that information.
|Appliance||Power Rating (Watts)||Average Daily Usage (Hours)||Quantity|
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 kilowatt:
E(kWh/day) = P(W) × t(h/day) / 1000(W/kW)
Determining how much electricity your appliances and home electronics use can help you understand how much money you are spending to use them. Use the information above to estimate how much electricity an appliance is using and how much the electricity costs so you can decide whether to invest in a more energy-efficient appliance.