Supplement Dosing Calculator

This calculator applies a supplement-specific grams-per-kilogram rule after converting body weight from pounds to kilograms. The supplement choice changes much more than a label: it selects separate loading and maintenance rates, phase lengths, and pre-workout timing values for creatine, caffeine, beta-alanine, or citrulline. Phase then chooses the loading or maintenance rate for creatine, beta-alanine, and citrulline. Creatine receives an additional range guard, with loading doses constrained to 15–25 grams and maintenance doses constrained to 3–10 grams. Caffeine is represented in grams but limited to the engine's six-milligram-per-kilogram ceiling; because both of caffeine's loading and maintenance rates translate to well above that ceiling at any valid body weight, the six-milligram-per-kilogram cap always binds and caffeine's daily dose is the same regardless of which phase is selected (phase still changes caffeine's displayed phase-duration label). Beta-alanine and citrulline use their weight-based results without those creatine bounds.

Body weight generally raises the calculated dose because it is multiplied by the selected rate, although a creatine bound can flatten that relationship near an endpoint. Timing and duration are lookup values, not quantities derived from weight: creatine displays “Anytime,” while the other choices show fixed minutes before exercise. A zero-day loading schedule appears as “Ongoing,” whereas maintenance duration depends on the supplement table. This tool does not consider medications, medical conditions, total caffeine from other sources, product concentration, serving size, or individual tolerance. Its output describes the formula encoded here, not a personalized safety clearance or prescription.