Find out how long caffeine will stay in your system! [Tool]

As a follow-up to this post showing the exponential decay of caffeine for popular beverages, I’ve created a quick tool allowing you to manually enter your own caffeine value to see how much will be left after each hour spent in your system.

Simply enter the value of caffeine in milligrams (mg) and hit enter to find out how long you can keep that caffeine buzz going.



I used an assumed half life of 5.7 hours in my exponential decay formula. My math can be found here.

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