LED Savings Calculator
Find out how much you can save by switching to LED lighting with a breakdown of energy savings, payback time, and long-term cost benefits.
Energy Savings
1,675.4 kWh/year
$301.56 savings per year
Upfront vs LED Cost
Traditional bulbs: $520.00
LED bulbs: $100.00
Payback & Lifetime
Payback: 0.2 years
Lifetime savings: $3,174.00
Significant energy savings—consider bulk purchasing LEDs and applying for utility rebates.
How to Use This Calculator
Inventory your lighting
Count how many bulbs you plan to replace and note their wattage and usage hours.
Enter energy details
Input your electricity rate and daily usage to estimate annual energy savings.
Compare bulb costs
Add existing bulb costs and LED prices to see payback period and lifetime savings.
Formula
Annual Savings = (Old Watts − LED Watts) × Bulbs × Hours per Day × 365 ÷ 1000 × Rate
Payback = (LED Upfront Cost − Old Bulb Cost) ÷ Annual Savings
Example: 20 bulbs, 60 W replaced with 9 W LEDs, 4.5 hours/day, $0.18/kWh → ~820 kWh saved, ≈ $148/year.
Payback: $100 LED cost vs $40 old bulbs → $60 ÷ $148 ≈ 0.4 years (~5 months).
About the LED Savings Calculator
LED bulbs slash energy use while lasting longer than incandescent or halogen lighting. This calculator quantifies cost savings so you can justify upgrades at home or across commercial buildings.
When to Use This Calculator
- Home upgrades: Plan LED retrofits room by room.
- Commercial lighting audits: Provide clients with ROI projections.
- Energy rebate applications: Document savings for utility incentives.
- Property management: Budget replacements across multi-unit buildings.
Why Use Our Calculator?
- ✅ Detailed ROI: Calculates annual savings, payback, and lifetime benefit.
- ✅ Flexible inputs: Works for incandescent, halogen, CFL, or HID replacements.
- ✅ Inventory aware: Handles large numbers of fixtures across buildings.
- ✅ Mobile friendly: Use during site walks or energy audits.
Common Applications
Facility managers: Quantify savings before large-scale retrofits.
Homeowners: Prioritize high-use areas like kitchens and living rooms.
Contractors: Present savings estimates in proposals.
Tips for Best Results
- Check color temperature and CRI to match existing lighting ambiance.
- Look for ENERGY STAR LEDs for rebates and quality assurance.
- Factor in dimmer compatibility before replacing bulbs.
- Replace high-use fixtures first to maximize savings.
Frequently Asked Questions
Do LEDs work with dimmers?
Yes, but ensure the LEDs and dimmers are compatible to avoid flicker or buzzing.
What about smart bulbs?
Smart LEDs often use slightly more power but provide automation and scheduling that can reduce overall usage.
Are there rebates for LEDs?
Many utilities offer instant rebates or mail-in incentives. Check local programs to lower upfront cost.
How accurate are savings estimates?
Actual savings depend on usage patterns and rates. Track energy bills before and after upgrades to verify your results.