Caffeine Calculator
Plan your caffeine, sleep better
Light
Dark
12h
24h
Half-life (hours):
Caffeine Amount (mg)
Time Consumed
Ideal Bedtime (Optional)
Add Another Dose
Reset All
Typical Caffeine Amounts:
Coffee: 95mg
Tea: 47mg
Energy Drink: 80mg
Soda: 40mg
Espresso: 64mg