Select an appliance type, and this appliance wattage calculator returns a typical running wattage range, useful for sizing a generator, planning a battery backup system, or simply understanding what’s drawing power in your home.
USA Appliance Wattage Calculator
Estimate running wattage, surge load, generator needs, and electricity costs.
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Power & Cost Breakdown Visualization
Appliance Energy & Generator Sizing Summary
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Wattage alone doesn’t tell the full story — how long an appliance runs matters just as much as how much power it draws in a given moment. Our article on how many watts your appliances actually use breaks down which household devices tend to surprise people most.
Once you have a wattage figure, our electricity cost calculator converts it into an actual dollar estimate based on your local rate per kilowatt-hour.