LED savings calculator

Use this LED savings calculator to figure out how much money you can save by installing LED house lights to replace incandescent lights.

The calculator assumes an average incandescent bulb lifetime of 1,000 hours and an average LED house light lifetime of 50,000 hours. You can change this if you wish based on the advertised lifetime hours of either the original or replacement bulb, or both.

For compact fluorescent (CFL) lights, see my CFL savings calculator.

Your electricity cost, in $/kwh
Wattage of incandescent bulb being replaced
Wattage of LED to replace the incandescent
Cost per incandescent bulb (for when bulb burns out)
Cost per LED replacement bulb
Incandescent bulb life (hours)
LED bulb life (hours)
Number of bulbs of this type being replaced
Number of hours/day light is in use
Savings per year
Payback in years

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