LED Cost Savings Calculator

Making the switch to LED lighting? Answer the following questions on your current lighting usage, plus the LED replacement, to calculate your savings.

Enter your project title

Old fixture (to be replaced)

Incandescent / Halogen: 1,250 hours
Metal Halide: 6,000 hours
Fluorescent/CFL: 8,000 hours
Pulse Start Metal Halide (PSMH): 15,000 hours
High Pressure Sodium (HPS): 20,000 hours

LED fixture (new fixture)

LED: 50,000 hours

Energy rate (electricity cost)

The average residential price of electricity in Australia is 28c/kWh.

Hours of operation

Other factors (optional)



Old fixtures
LED fixtures
No. of fixtures
Initial cost
Electricity cost ()
Electricity cost with
Lifespan (continuous use)
Lifespan when used for
No. of times an old fixture to be replaced each year
No. of times an old fixture to be replaced during the LED fixture's lifespan
Cost of replacements each year
([bulb cost] × [Number of replacement per year])
Annual labour cost for relamping
([Labour cost per relamping] × [Number of replacement per year])
Total annual cost
([Cost of replacing fixtures] + [Electricity] + [Labour cost])

(same as the annual electricity cost)
Total cost
(after )
Total savings /w LED fixture (ROI)
(after )
Break-even point (per unit)
(The amount of time necessary to save as much money as you invested initially)
Break-even point with (per unit)