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LED Savings Calculator

Are you considering switching from standard incandescent or halogen light bulbs to the far more energy-efficient LED light bulbs? Use the calculator below to work out how much money you might save on your electricity bill, and how much CO2 you could also save through energy efficiency.

Disclaimer: Whilst every effort has been made in building our calculator tools, we are not to be held liable for any damages or monetary losses arising out of or in connection with their use. Full disclaimer.

Why switch to LED light bulbs?

An LED light bulb typically uses up to 90% less energy than regular incandescent or halogen light bulbs and lasts far longer. This opens up savings in two ways:

  1. On your electricity bill
  2. On having to change your light bulbs less often

In addition to saving you money, LED light bulbs also help you save the planet because they use less energy and are often recyclable. Read more about the benefits of swapping out your light bulbs for LED ones in our article, Why Now Is THE TIME To Switch To LED Light Bulbs.

LED light bulb illustration for green energy

The most common light bulb alternatives

Incandescent bulbs were the most common type of light bulb found in the home for many decades. Although they used to be the cheapest type of bulb to buy, they were not energy efficient and needed replacing far more often. It is for those reasons that incandescent bulbs have been phased out in many countries around the world.

Halogen bulbs are a variation on the incandescent bulb and are said to use between 20-30% less energy. They are now the cheapest light bulb you can buy, but have a shorter lifespan than CFL and LED bulbs.

CFL bulbs (compact fluorescent lamp) are a type of energy-saving bulb and are said to use between 60-80% less energy than a standard incandescent bulb. They also have a far longer lifespan.

If you want to work out the lumens brightness conversion for LED or CFL bulbs, give our lumens to watts or watts to lumens converters a try.

Different types of light bulb

Working out your CO2 saving

The LED Saving Calculator produces a calculation for CO2 emissions. In order to calculate this figure, we use the DECC conversion factor of 0.542 kg CO2 saved for each kWh (produced from a carbon-free source).

Other energy converters available on this website include the watts to amps conversion tool.

Before you go...

You may wish to check out our electricity calculator to work out the cost of using your household electrical appliances and how the power usage compares. You may be surprised to hear, for example, that using an air fryer or microwave to cook your food can be more energy efficient than using an oven.

By Alastair Hazell Updated: January 24, 2023

If you have any problems using the LED Saving Calculator, please contact us.

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