To calculate the energy usage (kWh) with a **power usage calculator**, multiply the wattage of the device (W or kW) by the total time or number of hours used. For example, if you watch a 300W TV for four hours each day, you will consume 1200Wh or 1.2kWh per day. The usage cost for one month is:

1.2kWh x 30 days x 0.20 $/kWh) = $7.20

Watts are electrical units of measurement. A Watt is an electrical power unit equivalent to one ampere at one volt of pressure. In the metric system, one watt equals one joule for each second of energy that flows.

It is one of the fundamental units used to measure energy usage. To give you an idea, this amount corresponds to how much a machine works with a one-kilowatt output for one hour. In practice, you will also come across the unit megawatt-hour, which is equal to 1,000 kilowatt-hours.

An application's operational time might help you calculate your electricity expenses. The more your home's electronic devices operate during the day, the more electricity they consume, resulting in increased power consumption. Remember to enter the time of operation of your appliance into the power usage calculator that you use.

If you get an energy bill every month, you probably already have an idea about how much you are paying by way of your energy expenses. However, do you know how your household's energy use is, as compared to the national average? You might be astonished to learn how much more of electricity your home uses than others. The average annual power usage for a household utility user in the United States is 11 kilowatt-hours (kWh).

Its 29 kWh every day divided by 365.You can use an **energy usage calculator** to determine the expenses and **calculate kWh usage.**

We appreciate it very much