Caffeine Calculator

This calculator helps you track your daily caffeine intake from various sources and understand if you’re within safe consumption limits. Caffeine is a stimulant that can improve alertness and concentration, but excessive intake may lead to adverse effects.

How to Use This Calculator

1. Select common caffeine sources (coffee, tea, energy drinks)
2. Enter the quantity consumed
3. Add any additional caffeine sources
4. Get your total daily caffeine intake and safety assessment

Common Caffeine Sources

• Coffee

  • Brewed (8 oz): 95mg
  • Espresso (1 oz): 63mg
  • Instant: 62mg
  • Decaf: 2mg

• Tea

  • Black (8 oz): 47mg
  • Green (8 oz): 28mg
  • White (8 oz): 15-20mg

• Energy Drinks

  • Regular (8 oz): 70-150mg
  • Energy Shot (1 oz): 200mg

• Soft Drinks

  • Cola (12 oz): 35mg
  • Diet Cola (12 oz): 47mg

Safe Consumption Guidelines

According to the FDA and other health organizations:

• Healthy Adults: Up to 400mg per day
• Pregnant Women: 200mg or less per day
• Adolescents (12-18): No more than 100mg per day
• Children (<12): Should avoid caffeine

Understanding Your Results

• Low Intake: <200mg/day
• Moderate Intake: 200-400mg/day
• High Intake: >400mg/day
• Excessive Intake: >600mg/day

Signs of Excessive Caffeine Intake

1. Anxiety or restlessness
2. Rapid heart rate
3. Insomnia
4. Headaches
5. Digestive issues
6. Muscle tremors
7. High blood pressure
8. Dehydration

Tips for Safe Caffeine Consumption

1. Space Out Your Intake

   • Avoid consuming large amounts at once
   • Try to limit intake to morning/early afternoon

2. Stay Hydrated

   • Drink water alongside caffeinated beverages
   • Maintain proper hydration throughout the day

3. Monitor Sensitivity

   • Pay attention to how caffeine affects you
   • Consider personal tolerance levels
   • Be aware of medications that may interact with caffeine

4. Gradual Reduction

   • If cutting back, reduce intake gradually
   • Sudden cessation may cause withdrawal symptoms

Important Notes

• Individual caffeine sensitivity varies
• Some medications may interact with caffeine
• Certain medical conditions may require lower limits
• Consider timing of consumption (avoid late in day)
• Account for all sources of caffeine

When to Reduce Intake

Consider reducing caffeine intake if you experience:

• Sleep problems
• Anxiety or jitters
• Heart palpitations
• Stomach upset
• Headaches
• High blood pressure

Remember: This calculator is for informational purposes only. Consult with a healthcare provider about your specific caffeine intake needs and limitations.