electrical home calculators

LED Replacement Calculator

Calculate LED equivalent wattage and energy savings when replacing incandescent or CFL bulbs

About this calculator

The LED Replacement Calculator helps you determine the correct LED wattage needed to replace your existing incandescent or CFL bulbs while maintaining the same brightness level. This tool calculates potential energy savings, cost reductions, and environmental benefits of switching to LED lighting. By comparing lumens output and wattage consumption, you can make informed decisions about LED upgrades and estimate your return on investment through reduced electricity bills.

How to use

Enter your current bulb's wattage and type (incandescent or CFL) into the calculator. The tool will display the equivalent LED wattage needed for matching brightness, along with estimated annual energy savings and cost reductions. Compare multiple bulb replacements to calculate total household savings from LED conversion.

Frequently asked questions

How much energy can I save switching to LED bulbs?

LED bulbs typically use 75-80% less energy than incandescent bulbs and 40-50% less than CFL bulbs while producing the same brightness level.

Do LED bulbs really last longer than other bulb types?

Yes, LED bulbs last 15-25 times longer than incandescent bulbs and 2-4 times longer than CFL bulbs, reducing replacement frequency.

How do I match brightness when replacing with LED?

Focus on lumens, not watts. A 60W incandescent (800 lumens) equals an 8-10W LED bulb with the same lumen output.