Caffeine Calculator
Track your daily caffeine intake from all your drinks. Tap to add coffee, tea, soda, or energy drinks and see your total caffeine consumption compared to recommended limits.
Tap a drink to add it. Tap again to increase quantity.
Caffeine Content in Common Drinks
Coffee (8oz)
80-100mg caffeine. Brewed coffee has the most caffeine per serving.
Espresso (1oz shot)
64mg caffeine. Concentrated but smaller serving size.
Black Tea (8oz)
40-50mg caffeine. About half the caffeine of coffee.
Energy Drink (8oz)
80-300mg caffeine. Varies widely by brand and size.
Cola (12oz)
30-40mg caffeine. Much less than coffee or energy drinks.
Green Tea (8oz)
25-30mg caffeine. Lower caffeine with calming L-theanine.
How to Use This Calculator
- Tap on a drink to add it to your daily total
- Tap the same drink again to increase the quantity
- Use the X button to remove a drink from your list
- See your total caffeine and how it compares to the 400mg daily limit