Caffeine Level Tracker
Add doses with clock time. Live current level + hours until low enough for sleep (≈50 mg).
Current level at 20:00
58 mg
Hours until <50 mg: 1.2
Breakdown (remaining)
08:00 — 95 mg21 mg
14:00 — 80 mg38 mg
Half-life ~5.5 h average. Individual variation large. Local only.