Caffeine Withdrawal Timeline Planner
Map a gradual caffeine reduction from your current daily intake to a day-by-day target, with common caffeine withdrawal windows shown alongside each date.
Estimated timeline
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Estimated timeline
| Day | Date | Target | Window |
|---|
Informational estimate. Caffeine content varies by drink and preparation. This is not a diagnosis; a clinician decides.
iPhone & iPad · Free
Track it in Caffeine Tracker.
Track caffeine intake, reductions and daily patterns with the Caffeine Tracker app.
How the caffeine withdrawal timeline works
This caffeine withdrawal planner applies your planned reduction percentage on each step, starting from the current daily caffeine intake you enter. The target is a planning estimate, not a guarantee: caffeine values vary genuinely with brewing, bean, steep time and brand.
The symptom windows are informational markers from an established caffeine withdrawal course: onset is 12–24 hours after the last dose, peak is 20–51 hours, and the overall course is 2–9 days. Symptoms can include headache, fatigue and drowsiness, low mood or irritability, difficulty concentrating, nausea and muscle aches.
Day n target = current daily intake × (1 − reduction percentage ÷ 100)^n Gradual reduction is a commonly described approach for reducing withdrawal severity, but this planner does not prescribe a taper or diagnose symptoms. A single reading is not a diagnosis, and a clinician decides what is appropriate for you. Typical caffeine values are not guarantees.
FDA: Spilling the Beans: How Much Caffeine is Too Much? ↗USDA FoodData Central ↗
Caffeine withdrawal timeline FAQ
When can caffeine withdrawal begin?
The source describes onset as 12–24 hours after the last dose. The planner shows this as an informational window, not a prediction of what you will experience.
When do caffeine withdrawal symptoms peak?
The established course in the source places the peak at 20–51 hours after the last dose.
How long can caffeine withdrawal last?
The source describes a total duration of 2–9 days. Individual experiences vary, so this timeline should not be treated as a diagnosis.
Does this tool tell me how much caffeine to take?
No. It applies the reduction percentage you choose to your own starting intake; it does not recommend a dose or a specific taper.
Are the caffeine amounts exact?
No. Typical caffeine values vary with brewing, bean, steep time and brand. The tool uses only the intake amount you enter and does not identify the caffeine content of a particular drink.