The LED Savings Calculator compares an existing lamp against an LED replacement and reports annual energy saved, money saved, percentage reduction and the payback period on the LED purchase price.
LED Savings Calculator (vs Incandescent / CFL)
Compare existing lamps against LED replacements across a whole installation: annual energy and money saved, payback period, lamp replacement savings and carbon reduction.
Lamps
Usage
Purchase and life
Results
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saved per year
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payback
Notes
About LED Savings Calculator (vs Incandescent / CFL)
Features
- Existing versus LED wattage
- Hours per day and days per year
- Annual kWh for both options
- Annual saving in money and percent
- Payback period on lamp price
How to Use
- Enter the existing and LED wattages.
- Set usage hours, tariff and the LED price.
- Read the annual saving and payback.
Examples
Example: replacing a 60 W lamp with a 9 W LED for 5 h/day -> 93.1 kWh and $13.96 saved a year, an 85.0% reduction, paying back a $5 lamp in about 0.36 years.
Benefits
- Turns a retrofit decision into a payback number
- Scales from a single lamp to a whole site
Frequently Asked Questions
What does this calculator do?
Compare existing lamps against LED replacements across a whole installation: annual energy and money saved, payback period, lamp replacement savings and carbon reduction.
Is my data stored?
No. Everything runs in your browser; nothing is uploaded, saved or logged.