cost to run light bulb for 24 hours

How much does it cost to run a light bulb for 24 hours?

Want to know how much it costs to run a light bulb for 24 hours? Use the electricity cost calculator below to find out.

The calculator is set to 29p per kWh by default, you can change this value if yours is higher or lower.


(Estimated Running Cost)

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How much electricity does a light bulb use?

Lightbulbs can use anywhere between 25 – 100 Watts per hour depending on the type of bulb. There’s usually a marking on the bulb itself with its power rating.