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LED Savings Calculator (USA)

Compare your existing lighting to an LED retrofit. See your annual energy savings, payback period, lifetime net savings, and how bulb replacement labor and utility rebates change the numbers.

For estimation purposes only. Supports incandescent, halogen, CFL & fluorescent replacements. Confirm rebates with your utility.
1 Current lighting
qty
W
5W200W400W
hrs
days
/kWh
$0.05$0.28$0.50
hrs
2 LED replacement
W
1W75W150W
hrs
%
Extra HVAC savings as a percentage of lighting energy savings.
3 Project costs & assumptions
yrs
%
lbs/kWh
Used to estimate avoided emissions. Leave the default if unsure.
Estimated savings in year 1
—
Enter your details and click Calculate
Upgrade highlights
Net upfront cost —
Annual energy savings —
Payback period —
Net savings over period —
kWh saved per year —
CO₂ avoided per year —
Where the savings come from
Calculate to see breakdown
Current lighting
Bulb type—
Fixtures—
Watts per fixture—
Connected load—
Operating hours / yr—
Energy used / yr—
Energy cost / yr—
Replacement cost / yr—
Total annual cost (current)—
After LED upgrade
Watts per fixture—
Connected load—
Energy used / yr—
Energy cost / yr—
Replacement cost / yr—
Wattage reduction—
LED replacement interval—
Bulb changes avoided / yr—
Total annual cost (LED)—
Annual savings (year 1)—
Project analysis
LED product cost—
Installation cost—
Utility rebates—
Net upfront cost—
Payback period—
Return on investment—
Gross savings over period—
Energy saved over period—
Net savings over period—
Visualizations
Cumulative net savings
Annual cost: now vs. LED
Disclosure: This calculator provides estimates for informational purposes only and does not constitute an energy audit or financial advice. Actual savings depend on fixture selection, run hours, utility tariffs, and rebate eligibility. Confirm program terms with your utility and a licensed electrician before purchasing.