Supplements
Caffeine Calculator
Calculate a performance and a safe upper caffeine dose for your body weight.
How the Caffeine calculator works
Calculate a performance and a safe upper caffeine dose for your body weight.
Every result on MacroMatrixCalc is based on peer-reviewed equations and adjustable for goal, sex, age and activity. Use the form above to update your numbers — results recalculate instantly so you can compare scenarios.
Frequently asked questions
An espresso shot has ~65 mg; a 350 ml brewed coffee ~140–200 mg.
Recommended products
Curated supplements and gear for this calculator will appear here soon.