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.

Annual baseline energy: 87.6 kWh

Annual baseline energy

87.600000kWh
Annual efficient energy: 14.6 kWh

Annual efficient energy

14.600000kWh
Annual energy savings: 73 kWh

Annual energy savings

73.000000kWh
Annual baseline cost: $13.14

Annual baseline cost

$13.14
Annual efficient cost: $2.19

Annual efficient cost

$2.19
Annual cost savings: $10.95

Annual cost savings

$10.95
Simple payback: 0.46 years

Simple payback

0.46years

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.