Calculate your Body Mass Index and see which category you fall into.
kg
cm
📖 What is BMI?
BMI (Body Mass Index) is a measure that relates weight to height to classify the nutritional status of adults. It's calculated by dividing weight (kg) by height squared (m²). While widely used, it's a screening tool — not a diagnosis.
⚠️ BMI Limitations
• Doesn't differentiate between muscle mass and fat mass
• A bodybuilder can have an "obese" BMI while being extremely lean
• Doesn't consider fat distribution (visceral vs subcutaneous)
• Doesn't account for age, sex, or ethnicity
• Not suitable for children, pregnant women, or the elderly
• For athletes, body fat percentage is more informative
📊 BMI Alternatives for Trainers
• Body fat percentage (skinfolds, bioimpedance)
• Waist circumference (<94cm men, <80cm women)
• Waist-to-hip ratio
• Progress photos + measurements
• CatalysFit tracks all these metrics for every client automatically
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Want AI to handle this for every client?
CatalysFit uses AI to generate periodized programs and manage all your clients in one place.