Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a measure of body fat based on your weight divided by your height squared. It is widely used to screen for weight categories.
What is a healthy BMI range?
According to the WHO, a BMI of 18.5 to 24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.
What are the limitations of BMI?
BMI does not distinguish between muscle and fat mass. Athletes with high muscle mass may have a high BMI without being overweight. Consider body fat percentage as well.
Updated 2026 — WHO standards