Competition Weight Class Calculator

Because Recommended Weight Class is found entirely from your body-composition floor and cutting-capacity floor, both of which come from Current Weight, Body Fat Percentage, and Cutting Experience -- Height never enters that comparison. Height only feeds the separate Size Assessment text, which compares your height against a rough division reference, so changing it moves that label without touching the weight-class recommendation at all.

It's a commonly cited reference point for essential body fat in men, not a clearance from a physician. Minimum Safe Weight is the weight at which your current Lean Body Mass would sit exactly at that 5% floor, assuming lean mass doesn't change during the cut, which real weight cuts don't guarantee. Treat it as a floor this calculator won't recommend going below, not a personal medical safety certification.

It changes the cutting-capacity percentage applied to Current Weight -- 5% for beginners, 8% for intermediate, 10% for advanced -- which sets one of the two floors Recommended Weight Class chooses between. A more experienced selection can only make that cutting-capacity floor lower (allowing a lower class), never raise your body-composition floor, so the two floors interact rather than either one deciding alone.

Treat it as a useful heuristic, not personalized scouting data. It compares your Height against a linear formula calibrated against real average UFC-roster height by division, landing within about an inch of every sourced division's actual average -- but it's still a fit to the average height per division, not the real spread of every competitor in it, so an unusually tall or short fighter within a division won't be reflected. Use it as a talking point with a coach, not as a substitute for real scouting or matchup research.