Lighting Savings Calculator

Enter in the first box the number of incandescent bulbs in your home for each wattage. We'll calculate and show you the estimated annual lighting expense and the potential savings when switching to an equivalent CFL or LED bulb.

  Annual Cost
Qty. Standard Incandescent Bulb CFL Bulb LED Bulb
40W
9W
8W
60W
13W
13W
75W
19W
17W
100W
23W
19W
  CFL LED
YOUR ANNUAL SAVINGS

CFL bulbs can last 10 times longer and LED bulbs can last 25 times longer than a standard incandescent light bulb.

  • *Annual costs are calculated based on use for 3 hours a day, 365 days a year with electricity rate of 13¢ per kWh. This calculator is designed to provide an estimate of the savings associated with replacing standard incandescent light bulbs with ENERGY STAR certified bulbs. Actual savings may vary based on use, upkeep, and other factors.