Caffeine Half-Life Calculator
Calculate when caffeine will leave your system based on consumption time and amount for better sleep planning.
Caffeine Half-Life Calculator
Estimate caffeine levels in your body
What is Caffeine Half-Life?
Half-life is the time it takes for the amount of a substance (like caffeine) in your body to reduce by half. For healthy adults, caffeine's half-life is about 5 hours.
Common Caffeine Sources
Disclaimer
This calculator provides an estimate based on averages. Individual metabolism, genetics, liver health, and medications can affect caffeine clearance. This is not medical advice.
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