Recommended Daily Caffeine Intake: Up to 400mg for most healthy adults.
Caffeine Consumption Summary
Total Caffeine Today: 0 mg
Coffee & Other Beverages
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Espresso (Single Shot)
Water Output: 20 ml
Caffeine: 0 mg
☕☕
Double Espresso
Water Output: 40 ml
Caffeine: 0 mg
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V60 / Pour Over
Water Used: 250 ml
Caffeine: 0 mg
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Iced Coffee (Brewed Hot)
(Assuming brewed hot, then chilled/iced. Ice dilution not factored here.)
Water Used for Brewing: 165 ml
Ice: 85 g
Caffeine: 0 mg
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Black Tea
Serving: 1 cup (approx. 237ml)
Caffeine: 47 mg
(Source: USDA for brewed black tea)
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Coca-Cola Classic
Serving: 1 can (12 fl oz / approx. 355ml)
Caffeine: 34 mg
(Source: USDA/Manufacturer data for Coca-Cola Classic)
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Red Bull Energy Drink
Serving: 1 can (8.4 fl oz / approx. 250ml)
Caffeine: 80 mg
(Source: Manufacturer data for Red Bull)
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Green Tea
Serving: 1 cup (approx. 237ml)
Caffeine: 28 mg
(Source: USDA for brewed green tea)
Important Notes About Calculations
The amount of water used in brewing does not significantly affect the caffeine content. Caffeine extraction is primarily determined by the amount of coffee grounds used and the brewing method.
All calculations are approximate and based on general averages. Actual caffeine content can vary significantly due to factors such as:
Coffee bean variety and origin
Roast level
Grind size
Brewing temperature
Brewing time
Individual extraction efficiency
This calculator is meant to provide a rough estimate and should not be used for precise caffeine tracking.