If you are in the United States or another country that primarily uses imperial measurements, entering your weight in pounds and height in feet and inches is more natural than converting to metric. This calculator handles the imperial-to-BMI conversion automatically, applying the standard formula with the correct multiplication factor for pounds and inches. Your result includes the BMI value and the corresponding health category based on standard medical guidelines.
Calculator
Calculate your Body Mass Index and see exactly where you land on the healthy-weight scale.
Enter your height and weight
Your BMI and weight category will appear here instantly.
Body Mass Index (BMI) is calculated by dividing your weight in kilograms by the square of your height in meters (kg/m²). It provides a simple numeric measure of a person's thickness or thinness. While widely used by health organizations, BMI does not directly measure body fat percentage.