BMI Calculator
Body Mass Index (BMI) is a simple numeric measure of body fatness based on height and weight. It is widely used as a screening tool but does not directly measure body fat or account for muscle mass, age, or sex.
FAQ
Q: What is BMI?
A: BMI (Body Mass Index) = weight(kg) / height(m)². It classifies individuals into underweight, normal, overweight, and obese categories based on their weight relative to height.
Q: What are the BMI categories?
A: Underweight: < 18.5 | Normal weight: 18.5–24.9 | Overweight: 25–29.9 | Obese: ≥ 30. These thresholds are defined by the World Health Organization (WHO).
Q: Is BMI accurate for everyone?
A: BMI is a screening tool, not a diagnostic measure. It may overestimate fat in muscular individuals or underestimate it in older adults. For children and teens, age- and sex-specific percentile charts are used instead.