Power consumption & energy usage of freezers

Freezers are used to prevent food from spoilage so that it can be used later. Almost every home has a freezer, at least the one attached to the refrigerator. Here you can calculate the energy usage of freezers. The power consumption of freezers ranges from 30watts to 100 watts, depending on the size and storage capacity.

Enter the wattage, hours of usage and cost per kWh. This electricity usage calculator for freezers gives you the total energy consumed by your freezer and the utility charges.

Energy usage of freezers

Average usage hours per day:
Cost per unit*:(Global Electricity rates)
Electricity usage per hour:
Electricity usage per day:
Usage cost per hour:
Usage cost per day:
Usage cost per month:
Usage cost per year:
*The cost is currency independent and same that of cost per unit input given.

Terms and definitions:


Power usage of device in watts as mentioned in the label of the lamp.

Cost per unit:

The average cost per unit charged by the electric utility. Every country has different tariff rates. Visit: Global Electricity prices for details if you don’t know how much the utility company charges you per unit or kWH.

Units per day:

The number of units of electricity consumed by the load every day considering the entered operation hours.

Hours of usage:

Number of hours the load is used per day.

The electricity usage depends on the wattage, number of hours of usage. The utility company charges you for total number of kilo-watt-hour of energy you have consumed. Kilowatt hour is the product of power consumption of the load and the number of hours of usage.

A freezer consists of a compressor, evaporator fan, evaporator coil, expansion valve and condenser coil. A refrigerant is continuously circulated that expels the heat out of the freezer.

The compressor compresses the hot refrigerant in vapour form to a high-pressure gas, which passes through the condenser where it is cooled down. This cool liquid refrigerant enters the expansion valve, where a sudden pressure drop occurs. This low pressure refrigerant enters the refrigerator and absorbs heat from the stored food and evaporates. The evaporated refrigerant enters the compressor again and the cooling cycle continues.

Typical power consumption of freezers

As mentioned earlier the power consumption of freezer ranges between 30-100 watts. This may vary from manufacturer to manufacturer and from one model to the other.

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