JJ McCarthy is listed at around 6 feet 3 inches tall (about 191 cm) in multiple credible sources, with most rosters and profiles citing 6'3" and a weight near 219 pounds. Some variations exist in published materials (e.g., listings at 6'2" to 6'3" and weights ranging from ~202 to 219 pounds) but the prevailing figure in recent NFL and college references is 6'3" and 219 lbs. If you need a precise current measurement for a specific team roster or event, I can look up the latest official listing for that source.