BMI Calculator

Calculate your Body Mass Index from height and weight.

24.2

Normal weight

UnderweightNormalOverweightObese

Overview

Calculate your Body Mass Index (BMI) from height and weight, in metric or imperial units, with the standard WHO weight category.

Formula

BMI = weight (kg) / height (m)²

BMI Categories

BMI Category
Below 18.5 Underweight
18.5 – 24.9 Normal weight
25.0 – 29.9 Overweight
30.0 and above Obese

Note

BMI is a simple screening measure and doesn't account for muscle mass, bone density, age, or sex — it can misclassify very muscular or very lean people. It's a useful starting point, not a diagnosis.

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