BMI Calculator

What is BMI and How is it Calculated?

Body Mass Index (BMI) is a simple numerical measure calculated from your height and weight. The formula is: BMI = weight (kg) / height (m)². While BMI is a useful screening tool, it does not directly measure body fat and should not be used as a definitive health diagnosis.

Example Calculation

For a person who is 170 cm (1.70 m) tall and weighs 70 kg: BMI = 70 / (1.70)² = 70 / 2.89 = 24.2 (Normal weight).

Limitations of BMI

• BMI does not differentiate between muscle and fat, so muscular athletes may have a high BMI despite low body fat.
• It doesn't account for age, gender, or ethnicity differences in body composition.
• Use BMI as one indicator among many, not as a sole health metric.