// Supplement Calculators

Caffeine Intake calculator

Find your safe daily caffeine limit.

Your details

Your result

Safe daily max
400mg
≈ Coffees
4.2
  • Up to ~6mg per kg, capped near 400mg/day for most healthy adults.

Estimates are for general guidance only and are not medical advice. For a personalised plan, book a free guided tour at RPM Gym.

Understanding your safe caffeine intake is crucial for both performance and health. Our Caffeine Intake Calculator helps you determine your personalized daily limit based on your body weight. While 400mg is a common general guideline for most healthy adults, individual tolerance varies. Use this tool to make informed choices about your caffeine consumption, whether it's from coffee, tea, energy drinks, or supplements.

Once you input your weight, the calculator provides a recommended maximum daily caffeine intake. This number is an upper limit, not a target. Pay attention to how different amounts of caffeine affect you personally. If you experience jitters, anxiety, or sleep disturbances, consider reducing your intake, regardless of the calculated maximum. Listen to your body above all else.

Use this information to optimize your energy levels without negative side effects. If your current intake exceeds the recommended limit, gradually reduce it to avoid withdrawal symptoms. For personalized advice on nutrition and supplementation, including how caffeine fits into your fitness regimen, consider booking a free guided tour of RPM Gym to discuss your goals with our experts.

Related calculators
View all calculators →
// Frequently Asked

Questions, answered.

What are the signs of too much caffeine?

Excessive caffeine intake can cause restlessness, anxiety, jitters, rapid heart rate, insomnia, and digestive issues. If you experience these symptoms, reduce your consumption.

Can RPM Gym help me use this caffeine intake calculator | safe daily limit result?

Yes. Bring your result to a free tour or coaching conversation, and the RPM team can help connect it to a realistic training and nutrition plan.

Make the numbers count.

Book a free guided tour at RPM Gym Abu Dhabi and turn your targets into a real plan.

Book Free Tour