Homes
Here you'll find calculators to help you evaluate your home's energy use and need for energy-efficient improvements.
Saving Energy
-
Energy Efficient Rehab Advisor
This tool provides guidelines and savings information for incorporating energy efficiency into renovation projects for single and multifamily housing. From the U.S. Department of Housing and Urban Development
-
Home Energy Saver
Identify the best ways to save energy in your home. From the Lawrence Berkeley National Laboratory
Insulation
-
Zip Code Insulation Tool
Provides the most economic insulation level for new or existing houses. From the Oak Ridge National Laboratory
Appliance Cost Calculators
-
ENERGY STAR® Cost Calculators
Find product information and savings calculators for a wide array of ENERGY STAR products.
-
Refrigerator Retirement Savings Calculator
Calculates potential savings from replacing an old refrigerator with a new ENERGY STAR refrigerator. From ENERGY STAR
Water Saving Technologies Cost Calculators
Find the lifetime energy savings of water saving technologies with varying efficiencies. From the U.S. Department of Energy
-
Faucets/Showerheads
-
Toilets/Urinals
-
WaterWiser Drip Calculator
Measure and estimate the water wasted due to leaks. From the American Water Works Association
Software
-
Building Energy Software Tools Directory
Features a list of software tools developed primarily for the buildings industry. From the U.S. Department of Energy
Other Resources
More calculators to help you evaluate renewable energy systems, space heating and cooling systems, and water heaters.
Also, see our information about home energy audits and analyzing your electricity loads.
