Home Standby Generator Calculator
Easily Size Your Home Standby Generator
Electric Generators Direct put together this easy-to-use Standby Generator Sizing Calculator to make it simple to pick the perfect one for your home. Simply fill out the details of your home and the wizard will suggest generators that meet your needs. To determine your home’s exact power requirements, we suggest contacting a certified electrician.
Step 1: Home Details - What is the Size of your Home?
Step 2: Central Air Conditioner Size
Step 3: What Do You Want To Power?
Whole HouseSelecting whole house provides a backup generator recommendation based on your home's size and corresponding outlets and lighting requirements and assumes natural gas appliances in the baseline calculation. If your home has electric appliances like an electric range, electric clothes dryer, electric water heater, etc., you can add these items below to accurately reflect your home's specific backup power needs.
CustomizeUse this option if you want an emergency back-up generator without powering your entire home. Be sure to select each electrical appliance you wish to have backup power for in your home below.
Don't see an item you need? Add Your Own
We recommend having an licensed electrician verify your specific electrical requirements before purchasing.
|Standby Generator Options|
How to Use the Whole House Generator Sizing CalculatorUsing our free whole house sizing calculator is simple and will give you recommendations in three quick steps:
- Enter your home's square footage and ZIP Code. This information is used later in the calculation as a baseline.
- Select the size of your air conditioner. Since central air conditioners typically use more wattage than any other appliance in your home, you will want to make sure you get a generator that can handle the load.
- Select what you want to keep powered during an outage. If you select Whole House, the tool provides a backup generator recommendation based on your home's size, corresponding outlets and lighting requirements and assumes natural gas appliances in the baseline calculation. You can also add appliances into the calculation from our preset list or manually insert your own The tool is fully customizable.
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