Appliances

LED Bulb Savings Calculator

LED bulbs use a fraction of the power of old incandescent or halogen bulbs. This calculator shows your annual savings and how quickly new LEDs pay for themselves.

Your details

Results

Annual energy savings

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Payback period

Time for the bulbs to pay for themselves.

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Energy saved per year

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Last updated June 30, 2026. Results update automatically as you type.

How it works

Power saved = (old watts − LED watts) × number of bulbs ÷ 1000. Energy saved per year = power saved × hours/day × 365. Annual saving = energy saved × your rate. Payback = total LED cost ÷ annual saving (shown in years).

Frequently asked questions

How much can LED bulbs save?

An LED uses about 80–90% less power than an incandescent for the same brightness. Across a whole home the savings often pay for the bulbs within a year.

What LED wattage replaces a 60W bulb?

Roughly 8–10W of LED produces the same light as a 60W incandescent. Match by lumens, not watts, for accuracy.

Do LEDs last longer too?

Yes — LEDs typically last 15,000–25,000 hours versus ~1,000 for incandescents, so you also save on replacements (not counted in this estimate).

These calculators provide general estimates for educational purposes only and are not financial advice. Real-world results depend on factors not captured here. Verify figures independently before making any purchase or financial decision.