A caffeine intake helps you calculate caffeine intake values accurately and instantly.
Calculate your safe daily caffeine limit. Generally 3–6 mg per kg of body weight is safe for most adults. FDA recommends max 400 mg/day.
The Caffeine Intake Calculator uses standard formulas to calculate your results. Enter your values in the input fields and click Calculate to see instant results.
Yes, the Caffeine Intake Calculator on CalcMaster is completely free to use with no signup required. Your data stays in your browser and is never sent to any server.
The Caffeine Intake Calculator uses verified formulas and provides accurate estimates for informational purposes. Results are calculated instantly in your browser.