Caffeine Calculator
Calculate your daily caffeine intake and compare it to recommended limits. Helps you monitor consumption from coffee, tea, energy drinks, and more.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Caffeine Calculator
- Enter amounts in the four input fields: Coffee (8 oz cups), Tea (8 oz cups), Energy Drinks (8 oz servings), and Soda (12 oz cans). Use whole numbers or decimals (e.g., 1.5).
- Click "Calculate" to see your total caffeine in mg, a progress bar showing how it compares to the 400 mg adult limit, and a status message (low, moderate, or high intake).
- Review the breakdown below the results to see how each drink contributed to the total.
- Check recommended limits for healthy adults (≤400 mg), pregnant women (≤200 mg), and adolescents (≤100 mg).
Note: All inputs must be non-negative numbers. The calculator uses standard caffeine values per serving (coffee: 95 mg, tea: 47 mg, energy drink: 80 mg, soda: 34 mg).
Previous Results
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Frequently Asked Questions
For healthy adults, up to 400 mg per day is considered safe. Pregnant women should limit to 200 mg, and adolescents to 100 mg.
An 8 oz cup of brewed coffee contains about 95 mg of caffeine. However, this can vary based on brewing method and bean type.
This calculator uses standard averages. For precise values, you would need to adjust based on specific brands or preparation methods.
