Appliance Energy Savings
Appliance Energy Savings
Compare stated power use and a simple energy-only payback.
How it works
Compare stated power use and a simple energy-only payback.
Using this calculator
Enter existing power (w), replacement power (w), hours per day, use days per year, price per kwh, replacement cost. annual savings = (old W − new W)/1000 × hours × days × unit price.
What to keep in mind
A quantity estimate using your measurements, not a structural design, building-code check or purchasing specification. Allow for real shapes, cutting and the product instructions.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.