Caffeine Calculator
Free Caffeine Calculator to track your daily caffeine consumption from coffee, tea, energy drinks, and soda. Check if you exceed the safe 400mg daily limit.
Enter number of servings for each drink
About This Calculator
Track your daily caffeine intake from all sources. The FDA recommends a maximum of 400mg of caffeine per day for healthy adults. Our calculator helps you stay within safe limits.
Frequently Asked Questions
How much caffeine is safe per day?
For healthy adults, up to 400mg of caffeine daily is considered safe by the FDA. This equals about 4 cups of brewed coffee or 2 energy drinks. Pregnant women should limit to 200mg daily. Consuming over 600mg may cause side effects like anxiety, insomnia, and heart palpitations.
How much caffeine is in coffee?
Coffee caffeine content: Brewed coffee (8oz): 95mg, Espresso (1oz): 63mg, Instant coffee (8oz): 60mg, Cold brew (8oz): 200mg, Starbucks brewed (grande): 310mg. Decaf coffee contains 2-5mg.
How much caffeine is in tea?
Tea caffeine content: Black tea (8oz): 47mg, Green tea (8oz): 28mg, Matcha (8oz): 70mg, Oolong tea (8oz): 37mg, White tea (8oz): 15mg. Herbal teas like chamomile and peppermint are naturally caffeine-free.
What are symptoms of too much caffeine?
Excessive caffeine symptoms: Restlessness, anxiety, insomnia, rapid heart rate, upset stomach, tremors, headaches, dizziness, dehydration. Severe overdose (rare) can cause confusion, hallucinations, and seizures. If you experience severe symptoms, seek medical attention.