Coffee Kick Calculator
Food & CookingEstimate how much caffeine remains in your system after drinking coffee.
Remaining caffeine
Estimated caffeine still in your system
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Odeh Ahwal0people find this calculator helpful
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Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Food & Cooking calculators
Frequently Asked Questions
How is remaining caffeine in the body estimated?
Caffeine breaks down following a half-life decay pattern, so the amount remaining after a given time equals the original dose times one-half raised to the elapsed time divided by the half-life.
How much caffeine remains 3 hours after a 95 mg coffee?
With a typical 5 hour half-life, about 62.7 mg of the original 95 mg dose would remain after 3 hours.
Why does caffeine half-life vary between people?
Genetics, liver function, pregnancy, and smoking status can all noticeably speed up or slow down how quickly the body clears caffeine.
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