Energy Consumption Calculator

Energy Consumption Calculator

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Select Typical Appliance, Enter Power Consumption (W,kW), Enter time period of power consumption then click on " Calculate " button.

Calculate Box

-- Select Equipment Type -- Air conditioner Clothes dryer Clothes iron Dishwasher Electric kettle Electric Fan Heater Microwave oven Desktop computer Laptop computer Refrigerator Stereo receiver Television Toaster oven Vacuum cleaner Washing machine Water Heater

W kW

H/D

kWh/D

kWh/M

kWh/Y

Description

An Energy Consumption Calculator is a tool that helps individuals and businesses estimate their energy usage and costs. By inputting information such as the types of appliances or devices used, their power ratings, and the duration of usage, the calculator can provide an estimate of total energy consumption in kilowatt-hours (kWh).

General Formula

\[ W= \frac{P\times t} {1000} \]

-\(W\) : The energy consumption in kilowatt-hours (kWh).
-\(P\) : The active power rating of the device in watts (W).
-\(t\) : The total usages time on device is used, usually measured in hours (h).

Practical Examples

Let's say, we have a desktop Computer run on 230V power rating 500 W and usage time 8 hours per day.

• Energy Consumed Per Day
\[ W = \frac{{500 W} \times {8h}} {1000} \notag\\ W = \frac{4000Wh}{1000} \notag\\ W = 4kWh/day \]
• Energy Consumed Per Month
\[ W = 4kWh \times 30 \notag\\ W = 120kWh \]
• Energy Consumed Per Year
\[ W = 4kWh \times 365 \notag\\ W = 1460kWh \]

Back to calculate box, please click here Calculate Box