Life & fun · November 19, 2025
Caffeine Half-Life Calculator
Track caffeine decay in your body instantly
What it does
A caffeine calculator that goes beyond total intake. It shows how caffeine decays in your body over time using real half-life science. Track multiple drinks, see overlapping effects, and check if your levels will impact sleep. Fast, accurate, no login required — built for coffee lovers, students, and anyone wanting clearer insight into their daily caffeine habits.
Does a similar job
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- CCCaffeine Clock – A beautiful and accurate caffeine tracker appOct 2025 · caffeineclock.app · ▲14
Hi guys! I would love to show you Caffeine Clock 2.0, a tracker I made that shows you your caffeine levels now and in the future, helping you have undisrupted sleep by timing your caffeine better. A bit of context - as a guy who drinks a lot of caffeine, I wanted to make a good caffeine tracking app for a long time, since nothing I found at the time was sufficient. I wanted to make an app that would be easy to use, show you exactly when you’d have enough caffeine to not have your sleep disrupted, and could add all the drinks I usually drink, for free. After several iterations, I am now…
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