BMI Calculator

Calculate your Body Mass Index instantly with our easy-to-use tool. Get health insights and recommendations based on your BMI.

Calculate Your BMI

Metric (cm, kg)
Imperial (inches, lbs)

BMI Scale

Underweight
< 18.5
Normal
18.5 - 24.9
Overweight
25 - 29.9
Obesity
≥ 30

Your Results

Enter your height and weight to calculate your BMI

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About BMI

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight and obesity in adults. Enter your information to get your personalized results.

Understanding BMI

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is a screening tool used to identify potential health risks.

BMI Categories

WHO classifies BMI as: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), and Obesity (≥30). These ranges help assess health status.

Limitations

BMI does not measure body fat directly and may overestimate fat in athletes or underestimate in older persons. Always consult a healthcare professional.