Anorexic BMI Calculator
Look up standard BMI classification bands, including the clinically underweight range, for reference.
How this is calculated
Uses standard BMI = weight(kg)/height(m)^2 classification bands published by WHO (e.g. <17.5 is a commonly cited clinical underweight reference point).
This calculator reports which standard BMI classification band a height/weight combination falls into, for general reference. It is not a diagnostic tool. A low BMI alone does not indicate an eating disorder, and this calculator does not provide any diet, exercise or weight-loss guidance. Please see a qualified healthcare provider for any concerns about weight or eating.