⚖️ BMI Calculator

Calculate your Body Mass Index (BMI) and see which weight category you fall into.

⚠️ Health Disclaimer: BMI is a screening tool, not a diagnostic tool. It does not account for muscle mass, bone density, body composition, or ethnic differences. Consult a healthcare professional for personalized health assessments.
Your BMI
0.0
Category

What Is BMI?

Body Mass Index (BMI) is a simple calculation using your height and weight. The formula is: BMI = weight(kg) / height(m)². It is widely used to screen for weight categories that may lead to health problems.

BMI Categories (WHO Classification)

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5 to 24.9
  • Overweight: BMI 25.0 to 29.9
  • Obese (Class I): BMI 30.0 to 34.9
  • Obese (Class II): BMI 35.0 to 39.9
  • Obese (Class III): BMI 40.0 and above

Limitations of BMI

BMI does not distinguish between muscle and fat mass. Athletes with high muscle mass may have a high BMI but low body fat. Similarly, older adults may have normal BMI but low muscle mass. Always use BMI as one of several health indicators, not the sole measure.