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Free LED vs incandescent savings calculator to estimate annual electricity reduction, monthly bill savings, payback period, and five-year net benefit from switching to LED lighting. Explore more tools in our energy and sustainability calculator category.
Last updated: April 9, 2026
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Incandescent Use
1752 kWh/yr
LED Use
263 kWh/yr
Annual Energy Savings
1489 kWh
Annual Cost Savings
$238
Monthly Savings
$19.86
Payback Period
3.3 months
5-Year Net Savings
$1126
Savings Summary
Fast payback scenario. High-use lighting zones are ideal for immediate LED upgrades.
This estimate excludes maintenance replacement cycles and dimmer compatibility costs. Use local rates and real bulb specs for best accuracy.
Best for
Fast total impact
Largest annual savings when many high-usage bulbs are replaced together.
Best for
Quick payback
Captures most of the benefit early with lower upfront spend.
Best for
Portfolio savings
Useful for reducing common-area and tenant energy intensity.
Best for
Commercial ops
Long operating hours often produce substantial year-one savings.
Best for
Extended runtime
Runtime-heavy fixtures typically recover LED premium quickly.
Best for
Incremental rollout
Spreads capital while still producing measurable utility savings.
For 20 bulbs, 4 hours/day, 60W incandescent vs 9W LED at $0.16/kWh:
Annual Savings
$238
Simple Payback
3.3 months
This calculator compares annual lighting electricity consumption between incandescent and LED options, converts energy reduction into dollar savings using your electricity rate, then estimates simple payback from the incremental bulb purchase cost. It is useful for households, rental operators, and commercial facilities.
Savings may be higher in real projects when you include fewer replacements and maintenance reductions from longer LED lifespan.
Usage Inputs → kWh Comparison → Cost Savings → Payback & Multi-Year Net Benefit
Prioritize lights with the highest runtime first. In many buildings, only a subset of fixtures drive the majority of annual lighting consumption. Replacing those fixtures first can recover investment quickly and fund broader upgrades.
Continue planning with our home energy audit calculator and energy efficiency ROI calculator.
Get Custom Lighting Savings CalculatorResult: Significant long-term savings with very short payback for this usage profile.
High-runtime fixtures produce the strongest economics and should be prioritized first.
Share it with homeowners, facilities managers, and retrofit contractors
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