Calculate estimated electricity consumption and cost based on the power consumption of your devices, and their daily operating time.
The Energy Consumption Calculator helps you determine how much energy an appliance uses based on its power and average daily usage time. The calculator displays the daily, monthly, and yearly energy usage of each appliance and the total energy consumption of all appliances entered.
As you can see, there are results displayed below each appliance, but they are also summarized at the top of the calculator for all appliances entered.
Multiply the power (W) by the daily operating time (hours/day), and divide the result by 1000.
For instance, let's calculate the daily energy consumption (in kWh) of a TV that has a power consumption of 70 watts and is used for an average of 3 hours per day.
|Appliance name||Power||Daily use time||Daily||Monthly||Annually|
|Laptop||60 W||03:00||0.18 kWh||5.4 kWh||65.7 kWh|
|Dishwasher||200 W||01:00||0.2 kWh||6 kWh||73 kWh|
|Refrigerator||200 W||24:00||4.8 kWh||144 kWh||1752 kWh|