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Free electricity calculator to estimate electricity usage as well as cost based on the power requirements and usage of appliances.
The power consumption calculator calculates how units of electricity (kilowatt-hours or kWh) a device draws per hour, per day, per week, and month. How to compute electric consumption? You only need to know the wattage of the unit, and how long you run it at that wattage.
Energy & Power Consumption Calculator in kWh. Enter electric appliance in the dropdown menu or enter manual wattage rating in watts or kilowatts (kW) and the daily usage of the device in hours. Click the calculate button to determine the daily, monthly and annual power usage or energy consumption in kWh.
How is energy use calculated? Energy providers calculate how much energy you're using with a measure called 'kilowatt hours' (kWh). A kilowatt hour is equivalent to 1,000 watts of energy used over one hour. So, for example, 1 kWh would be enough to power a 100-watt light bulb for 10 hours.
Calculate the energy usage for your home or individual appliance. Quickly see how much energy it uses and how much it costs to keep it powered.
Use our kWh calculator for a more customized estimate, and review past bills to understand your unique usage patterns. How Much Electricity Does a House Use? Figuring out your electricity usage helps you pick the best energy plan and save money on bills.
Energy Consumption calculation is equal to the total operating hours’ times of the total power supplied to that equipment. Energy consumption calculations: Let us assume, E(kWh) is the energy consumed by the equipment and the unit is kilo watt-hour. Always energy consumption should be in kilowatt-hour only. P(W) = Input power in kilo Watts.
