Caffeine Intake Calculator

Calculate your safe daily caffeine consumption based on your weight and tolerance

Updated with latest caffeine recommendations

Your Information

Low tolerance: You rarely consume caffeine or are sensitive to its effects.
Average tolerance: You consume caffeine occasionally or moderately.
High tolerance: You regularly consume caffeine and feel less sensitive to its effects.

Your Results

Enter your details and calculate to see your safe daily caffeine intake

Caffeine Information

Common Sources of Caffeine

Espresso Shot (1 oz) 63 mg
Coffee (8 oz) 95 mg
Energy Drink (8 oz) 80 mg
Black Tea (8 oz) 47 mg
Green Tea (8 oz) 28 mg
Cola (12 oz) 34 mg

Health Effects

  • Improves alertness and concentration
  • Reduces fatigue temporarily
  • May boost metabolism slightly
  • Can cause anxiety and restlessness
  • May interfere with sleep quality
  • Can increase heart rate and blood pressure
  • Excessive intake may cause headaches

Note: The FDA suggests that 400 mg of caffeine per day is generally safe for most healthy adults. Individual tolerance varies.

This calculator provides estimates based on general guidelines. Individual responses to caffeine may vary.

Always consult with a healthcare professional for personalized advice.