Sport-Specific BMI Calculator
Standard BMI with athlete context. See where you fall compared to elite combat sport athletes and get weight class suggestions.
Body Type
Elite Athlete BMI Ranges by Sport
Boxing Weight Classes
Minimumweight (105)
Flyweight (112)
Bantamweight (118)
Featherweight (126)
Lightweight (135)
Welterweight (147)
Middleweight (160)
Light Heavy (175)
Cruiserweight (200)
Heavyweight (200+)
Why Standard BMI Doesn't Work for Athletes
Body Mass Index (BMI) divides your weight by height squared to produce a single number. It was designed for population-level health screening, not for individual athletes. A muscular MMA fighter at 5'10" and 200 lbs has a BMI of 28.7 — technically "overweight" — despite being in exceptional shape. This is because BMI cannot distinguish between muscle and fat. For combat athletes, BMI is best used as a rough reference alongside body fat percentage and sport-specific weight class targets.
Elite combat sport athletes typically carry more lean mass than the general population. Their BMIs cluster higher than the "normal" 18.5–25 range without any health penalty. This calculator shows you where you fall relative to athletes in your sport, not just the general population chart designed for sedentary adults.
For comprehensive body composition tracking and weight class management, the Titans Grip apps include AI-powered nutrition plans and competition weight cut planning.