LED Lighting Savings Calculator
Compare existing and LED lighting energy use, annual operating cost, project cost, yearly savings and simple payback.
Default project preview
1,825 kWh/year
Annual cost savings
$328.50
Existing annual cost
$394.20
LED annual cost
$65.70
Net project cost
$80.00
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Annual energy = fixture count × watts × hours per day × days per year ÷ 1,000. Simple payback = net project cost ÷ annual cost savings.
FAQ
LED Lighting Savings Calculator questions
Does lower wattage always mean equal light output?+
No. Compare lumens, distribution, colour quality and fixture compatibility.
Are cooling savings included?+
No. Reduced heat from lighting may lower cooling load, but that secondary effect is not included.
What does simple payback exclude?+
It excludes financing, energy-price changes, maintenance savings and the time value of money.