categories.everyday-life
Instant, private, and free
LED Savings Calculator.
Compare annual energy use, electricity cost, savings, and payback from explicit lamp inputs and a user-entered electricity rate.
On-device calculationNo signup
01
Set your values
Results update as you type.
02 / ANSWER
Annual baseline energy: 87.6 kWh
Annual efficient energy: 14.6 kWh
Annual energy savings: 73 kWh
Annual baseline cost: $13.14
Annual efficient cost: $2.19
Annual cost savings: $10.95
Simple payback: 0.46 years
Results update automatically as you type.
Planning arithmetic only. Enter your own rates, capacities, efficiencies, and usage factors; no live tariffs or device defaults are used.