24.2
Healthy weight
Underweight: below 18.5
Healthy: 18.5 – 24.9
Overweight: 25 – 29.9
Obese: 30+
Sources & Citations
WHO Body Mass Index Classification (who.int/europe/health-topics/body-mass-index). NHS BMI Calculator (nhs.uk/live-well/healthy-weight/bmi-calculator).
BMI is a simple screening tool. It doesn't account for muscle mass, bone density, or body composition. Athletes often have high BMIs despite being very fit. Use it as a rough guide, not a diagnosis.