Use this simple sizer tool to find the generator that best fits your home.

This calculator is intended for estimating purposes only. Actual power requirements of high demand appliances vary widely by brand, model and capacity. Always have an authorized dealer or qualified electrician analyze your specific requirements before making a purchase decision.

Select Region:


Postal Code:


Enter the approximate area of your home in square feet.

Area (sq. ft.):

Select all circuits that apply. The following circuits require a great deal of power and can affect the required generator size.

Circuits to Back up: