bmi calculator

about bmi calculator

Calculate your Body Mass Index (BMI) using either metric or imperial measurements to get a quick health screening indicator based on your height and weight.

BMI is a widely used screening tool that provides a general indication of whether a person's weight falls within a healthy range relative to their height. It's calculated by dividing weight in kilograms by the square of height in meters. While not a diagnostic tool, BMI is commonly used by healthcare professionals as an initial assessment.

This calculator supports both metric (kilograms and centimeters) and imperial (pounds and inches) unit systems. Simply toggle between the two, enter your measurements, and get instant results. The output is color-coded for quick visual reference: blue for underweight, green for normal, yellow for overweight, and red for obese.

It's important to note that BMI has limitations — it doesn't account for muscle mass, bone density, age, sex, or ethnicity. Athletes with high muscle mass may have a high BMI despite being in excellent health. Always consult a healthcare professional for a comprehensive health assessment.

All calculations run entirely in your browser with no data stored or transmitted. Your health information stays completely private.