BMI Calculator
Your body mass index as a range from two formulas — plus what it actually means for you, and where BMI quietly misleads.
Your details
cm
kg
cm
Optional — add your waist and we compare BMI with a waist-based check, often the more useful signal.
Body mass index
Enter your height and weight to see your BMI range.
A population screening number, not a diagnosis. BMI ignores muscle, frame and fat distribution. Not valid in pregnancy, for children, or for very muscular builds.