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Home / AI & Robotics / AI Toolkit / LED Savings Calculator

LED energy savings calculator — free

See exactly what switching from incandescent, halogen or CFL to LED saves you — in dollars, kWh, and CO₂ — per year.

Old bulb type Brightness (equivalent)

Old bulb wattage LED replacement wattage

Hours used per day Number of bulbs

Electricity rate ($ per kWh)

🔒 The 5-year savings projection & CO₂ impact breakdown is a Pro extra — the core annual savings calculator is always free.

Calculate Savings

Annual Savings

5-Year Projection & CO₂ Impact

Why this exists

LEDs use roughly 75-85% less electricity than incandescent bulbs and last 15-25x longer, but "how much does that actually save me" is hard to eyeball. This runs the real math on your own bulb count, usage, and electricity rate — no account, right in your browser. CO₂ figures use a rounded U.S. average grid emissions factor and will vary by region and utility. For more energy-related coverage, see our Power & Energy page.

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