Anorexic BMI Calculator

Calculate your BMI with detailed underweight classifications and health risk assessment.

Your Measurements
lbs
ft
in
Understanding Low BMI

This calculator provides detailed classifications for underweight BMI ranges as defined by the World Health Organization (WHO). It's designed to help identify potential health risks associated with being significantly underweight.

When to Seek Help

  • BMI below 17.5 may indicate anorexia nervosa
  • Rapid, unintentional weight loss
  • Obsessive thoughts about food, weight, or body image
  • Physical symptoms like fatigue, dizziness, or hair loss
Resources:
  • National Eating Disorders Association: 1-800-931-2237
  • Crisis Text Line: Text "NEDA" to 741741

Related Calculators

BMI Analysis
Your BMI
ClassificationNormal Weight
Healthy Weight Range52 - 70 kg
BMI Categories (WHO)
Severe Thinness< 15
Moderate Thinness15 - 15.9
Mild Thinness16 - 18.4
Normal Weight18.5 - 24.9
Overweight25 - 29.9
Obese≥ 30