Energy Calculator

Lighting: Energy Calculator

You'll save energy and money when you replace your incandescent
bulbs with CFLs. How much? Calculate your savings here.

How much can you save?

120 watt bulbs to
32 watt CFL bulbs
100 watt bulbs to
23 watt CFL bulbs
75 watt bulbs to
19 watt CFL bulbs
60 watt bulbs to
14 watt CFL bulbs
40 watt bulbs to
9 watt CFL bulbs
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How much can you save?
0
Kilowatt Hours
(kWh) not Used
0
Tons of Carbon
Never Released
0
Dollars
Saved
0
Trees
Planted
0
Incandescent
Bulbs Never Made
0
Cars Taken
off the Road
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*Savings are measured over the lifetime of CFL bulbs as compared with the use of incandescent bulbs over the same period.

Numbers Used for Calculation

1,000 Hours Life span of an incandescent bulb

10,000 Hours Life span of a CFL bulb

$0.10 Price per kWh (Kilowatt Hour)

1.45 Pounds CO2 (Carbon Dioxide) emissions per kWh

2,932 Pounds CO2 absorbed by a tree over its lifetime

118,083 Pounds CO2 released by a car over its lifetime