May 3, 2023 · Use our simple calculator to do a whole house generator sizing. See exactly how many watts you need to power a home backup generator.

Figure out the right size generator for your home with our free Home Standby Generator Sizing Calculator. Choose the items in your home that you would like to power during an outage and …

After completing the calculator, you’ll receive custom information about your recommended whole house generator, estimated installation cost, financing options, and how to connect with your …

Oct 17, 2025 · To determine the size of the generator you need, envision what appliances you need during a power outage and use Generac's sizing calculator or schedule an in-home …

Calculate the appropriate size generator needed to power your entire home by entering all your household electrical loads below. Selecting the right size generator for your entire home is a …

Oct 8, 2025 · Wondering how to figure out what size generator you need? Learn how to choose the right size generator for your needs with this sizing guide.

Find the right generator size for your needs with our comprehensive sizing charts and guides.

Sep 14, 2025 · Get help calculating what size generator you need. Plus, advice on whether to pay more for an inverter model, or even invest in a whole-home generator.

To determine power requirements, write down your requirements in watts found on your devices. You can use the below table to help identify the number of watts your generator will need. Add …

Use our interactive generator sizing calculator to determine the right size generator for your home. Add your appliances and get a personalized recommendation.