Caffeine Calculator
Track your daily caffeine intake and its effects.
Beverages/Foods
Total Daily Caffeine
190mg
Low - 48% of limit
Daily Limit
400mg
Per kg Body Weight
2.7mg
Caffeine Metabolism
Half-life5.5 hours
After 6 hours89mg remaining
After 12 hours42mg remaining
Sleep Impact
Unlikely to affect sleep
Alertness Boost
Optimal
Recommendation
Caffeine intake is well within limits.