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Health

BMI Calculator

Calculate your Body Mass Index and find your healthy weight range

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BMI Calculator

Calculate your Body Mass Index (BMI) instantly with this free online BMI calculator. Enter your height and weight in metric or imperial units to see your BMI score and category — underweight, normal, overweight, or obese — based on World Health Organization guidelines.

FAQ

How is BMI calculated?
BMI equals your weight in kilograms divided by the square of your height in metres (kg/m²). The calculator handles both metric and imperial units for you.
What is a healthy BMI range?
For most adults a BMI between 18.5 and 24.9 is considered normal. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is obese.
Is BMI accurate for everyone?
BMI is a helpful general screening tool but it cannot tell muscle from fat, so very muscular people may read high. Consult a healthcare professional for a full assessment.