Electric Energy Calculator


Calculating electric energy consumption is crucial for understanding and managing energy usage in various applications, from households to industries. A reliable calculator simplifies this process, enabling users to estimate their energy consumption accurately.

How to Use

To use the electric energy calculator, follow these steps:

  1. Input the power consumption in watts (W).
  2. Enter the time duration in hours (h).
  3. Click the “Calculate” button to obtain the energy consumption in watt-hours (Wh).


The formula used for calculating electric energy consumption is:

Energy(W h)=Power(W)×Time(h)

Example Solve

Let’s say you have an appliance with a power consumption of 500 watts (W) and you use it for 3 hours.

Using the formula:

Energy=500 W×3 h

Energy=1500 Wh


Q: What is electric energy consumption?
A: Electric energy consumption refers to the amount of electrical energy used by an appliance or system over a specific period, typically measured in watt-hours (Wh).

Q: How do I convert watt-hours to kilowatt-hours?
A: To convert watt-hours to kilowatt-hours, divide the energy in watt-hours by 1000.

Q: Can this calculator be used for both AC and DC appliances?
A: Yes, this calculator works for both alternating current (AC) and direct current (DC) appliances.


An electric energy calculator simplifies the process of estimating energy consumption, aiding in efficient energy management. By inputting power consumption and duration, users can obtain accurate results, enabling better energy usage decisions.

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