Thermostat Energy Savings Calculator
Enter your current monthly heating or cooling bill and how many degrees you plan to adjust your thermostat to estimate savings.
Thermostat Energy Savings Calculator
Estimate potential heating/cooling cost savings from adjusting your thermostat setting.
A commonly cited rule of thumb is that adjusting your thermostat by one degree changes heating or cooling energy use by roughly 1-3%. This calculator applies that rule to your current bill to estimate potential savings.
Example
- With the default values shown above, this calculator returns: Estimated Percentage Savings ≈ 6.0%; Estimated Monthly Savings ≈ USD 9.00; Estimated Annual Savings ≈ USD 108.00.
Frequently Asked Questions
Where does the “1-3% per degree” rule come from?
It is a widely cited energy-efficiency rule of thumb from utility and energy-efficiency organizations, though the true savings depend on your specific climate, home, and heating/cooling system.
Does this apply to both heating and cooling?
Yes — the same general principle applies whether you are raising your thermostat setting in summer (less air conditioning) or lowering it in winter (less heating).