Caffeine Calculator: Total mg from Drinks & Custom Servings

🔗 Open the full-page Caffeine Calculator

Why track caffeine?

Caffeine is safe for most adults in moderate amounts, but sensitivity varies with genetics, medications, pregnancy, anxiety, and sleep disorders. Seeing total milligrams across coffee, tea, soda, and energy drinks makes it easier to compare your intake to typical reference levels.

Presets are approximate

Chain coffee sizes, brew methods, and bean roasts change caffeine content. When accuracy matters, use nutrition labels or lab-tested data and override with the custom mg row.

Not medical advice

This tool is for general awareness. Ask a healthcare professional about limits that apply to you.