The formula you are looking for is Watts = Amps x Volts.
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To calculate the watts used by the refrigerator, multiply the amperage by the voltage. Assuming a standard household voltage of 120V, a 4.5 amp refrigerator would use approximately 540 watts (4.5 A * 120 V = 540 W).
Probably about 450 watts. Since the primary use of power in a refrigerator is for a motor the watts it uses are less than the amps that pass through it. <<>> Assuming that the refrigerator uses 120 volts for a supply voltage, then W = A x V. 4.5 x 120 = 540 watts
A compact refrigerator typically uses around 50-100 watts when running. The exact wattage can vary depending on the size and efficiency of the refrigerator.
Kitchen refrigerators use 50-100 watts for about five minutes per hour, so 10 watts or less on average.
On average, a 3.2 cubic feet refrigerator uses around 150-200 watts when running. However, this can vary depending on factors such as age, efficiency, and temperature settings.
On a 16 amp plug, you can use a maximum of 3680 watts (16 amps x 230 volts) of power. It's important not to exceed this limit to prevent overloading the circuit and causing a fire hazard.