The Body Mass Index (BMI) is a simple calculation using your height and weight to estimate whether you're underweight, normal, overweight, or obese.

How BMI is calculated

BMI = weight (kg) / (height (m))². For example, if you weigh 70 kg and are 1.7 m tall: BMI = 70 / (1.7 * 1.7) = 24.22.

Using the Toolbox BMI Calculator

• Open the BMI tool from the Tools page.
• Enter your weight in kilograms and height in centimeters.
• The calculator shows your BMI and category instantly.

Limitations

BMI is an easy screening tool but does not account for muscle mass, bone density, or distribution of fat. Always consult a healthcare professional for a full assessment.