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I have a refrigerator (model No FRT18SJGW1) which consists of a freezer compartment on the top and a bigger frige compartment below. It is operating 24 hours a day and 365 days a year.

There is a label in its fridge compartment saying:

Electrial ratings: Amps 4.75, Volts 115, Hertz 60

I tried to compute its energy usage per year, and here is my computation:

4.75 Amps * 115 Volts * 0.001 * 24 hrs * 365 days = 4785.15 kWh/year

I looked up its model No FRT18SJG*1 (FRT18SJGW1) on http://www.energystar.gov/index.cfm?fuseaction=refrig.calculator, and found that it uses 766 kWh/year

Although I know both my computation and the website are estimates, they are too far different. What has been wrong? How can I do the calculation correctly?

Thanks and regards!