An LED vs incandescent savings calculator shows you exactly how much money you save by switching to LED bulbs — per bulb and for your entire home. LEDs use 75-90% less energy than incandescent bulbs and last 10-25 years instead of 1-2 years.
Bulb Settings
How to Use the LED vs Incandescent Savings Calculator
Switching to LED bulbs is one of the fastest payback home energy improvements available. This LED vs incandescent savings calculator shows exact savings per bulb, household totals, and CO2 reduction so you can see the full value of the switch.
Step 1: Enter bulb details
Select the bulb wattage you're replacing. A typical home has a mix of 60W and 100W incandescent bulbs. Enter how many hours per day each bulb runs on average — living room and kitchen lights might run 4-6 hours, bedroom lights 1-2 hours. Use 3 hours/day as a reasonable household average.
Step 2: Enter your electricity rate and bulb prices
Find your electricity rate on your utility bill — it's usually in cents per kilowatt-hour. LED bulbs now cost $2-$5 each, a dramatic drop from a decade ago. Include the full bulb count in your home for a complete household savings picture.
Step 3: Review the payback analysis
Most LED upgrades pay back in 1-3 months based on energy savings alone. Over 10 years, the savings per household typically reach $1,000-$2,500. The CO2 reduction is an additional environmental benefit.
Frequently Asked Questions
Is this LED savings calculator free?
Yes, completely free with no account required. All calculations run locally in your browser.
Is my data safe?
Absolutely. No data is sent to any server.
How much does switching to LED actually save?
A typical household replacing all incandescent bulbs with LEDs saves $100-$200 per year on electricity. A single 60W equivalent LED uses 9W versus 60W incandescent — saving 51W per bulb. At 3 hours/day usage and $0.13/kWh, that's about $7.24 per bulb per year in savings.
How long do LED bulbs last compared to incandescent?
LED bulbs typically last 10,000-25,000 hours. At 3 hours/day use, that's 9-23 years per bulb. Incandescent bulbs last only 1,000-2,000 hours (less than 2 years at the same usage). LEDs cost more upfront but much less over their lifetime when counting replacement costs.
Do LED bulbs really produce the same light as incandescent?
Modern LED bulbs produce equivalent light output. A 9-10W LED replaces a 60W incandescent (800 lumens), a 12-13W LED replaces 75W, and a 14-15W LED replaces 100W. Color temperature also matches: 2700-3000K for warm white (incandescent-like), 4000K for cool white, 5000K+ for daylight.
What is the CO2 reduction from switching to LED?
The US average grid emits about 0.4 kg CO2 per kWh. Switching a single 60W incandescent to a 9W LED at 3 hours/day saves about 62 kWh/year, which is approximately 25 kg CO2. For a whole house with 30 bulbs, that's roughly 750 kg CO2 per year avoided.