Calculate your Body Mass Index (BMI) to see where your weight falls relative to your height, using standard health categories.
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How This Is Calculated
BMI (Body Mass Index) is a simple screening measure that compares your weight to your height. It doesn’t directly measure body fat, but it’s a quick, widely-used starting point for assessing weight-related health risk.
The Formula
BMI = weight(kg) ÷ height(m)²
Categories
Below 18.5 Underweight · 18.5-24.9 Healthy Weight · 25-29.9 Overweight · 30 and above Obese.
BMI doesn’t account for muscle mass, so athletic or very muscular people may show a higher BMI without excess body fat. For a fuller picture, consider pairing this with the Body Fat or FFMI calculator.
Use BMI as a screening tool—not a diagnosis.
BMI is most useful alongside factors such as waist measurement, body composition, health history, and guidance from a qualified professional.
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