Tools
Utility tools built on top of the caffeine database.
These tools turn the database into something practical: daily intake checks, timing decisions, and product comparisons grounded in actual caffeine data.
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Caffeine Calculator
Add coffee, tea, energy drinks, soft drinks, and supplements from the database to see your total caffeine intake for the day.
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Sleep Cutoff Calculator
Estimate when to stop caffeine before bed based on your bedtime, current intake, and planned next dose.
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Caffeine by Bodyweight
Convert a caffeine dose into mg per kg bodyweight to understand whether intake is light or aggressive.
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Compare Drinks
Compare any two drinks side by side using caffeine, sugar, calories, serving size, and per-100ml data.
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