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⚖️ Body Mass Index (BMI) Calculator

The Body Mass Index (BMI) is a widely used screening tool to categorize weight status based on height and weight. It is recommended by the World Health Organization (WHO) as a general indicator of healthy weight.

What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m². A BMI of 18.5 to 24.9 is considered normal weight for most adults.

BMI Categories (WHO Standard)

  • Below 18.5 — Underweight
  • 18.5 – 24.9 — Normal weight
  • 25.0 – 29.9 — Overweight
  • 30.0 and above — Obese

Limitations of BMI

BMI does not account for muscle mass, age-related changes, ethnic differences, or fat distribution. Always consult a healthcare professional for a full assessment.


📚 Medical References & Sources

  1. World Health Organization (WHO). Body Mass Index (BMI) classification guidelines. Official Report
  2. American Heart Association. Understanding Blood Pressure and Weight Readings. Journal Source