Caffeine Tracking
Model caffeine intake and decay across your day.
Log drink time, dose, and extraction yield to estimate caffeine in your body with adjustable half-life.
Caffeine Timeline
Formula: C = D x rho x (EY x k), with rho fixed at 13.5 mg/g and k fixed at 3.25. EY is entered as a percent, or you can input caffeine directly in mg.
Half-life
5.00 hours
Typical half-life is around 4-6 hours, with a broader range closer to 2-9 hours.
Current in body
0.0 mg
Daily peak
0.0 mg
Total consumed
0.0 mg
24h shown
Drinks for this session (0)
Add a drink to see caffeine accumulation and decay.