BMI Calculator

Use this free BMI calculator to estimate your body mass index based on your weight and height. This quick online tool provides instant results to help you understand your general weight category.

How the BMI Calculator Works

The BMI calculator measures body mass index using a simple formula that compares your weight to your height. After entering your values, the calculator instantly determines your BMI number and classifies it into common weight categories such as underweight, normal weight, overweight, or obese.

Body mass index is widely used as a general screening tool to evaluate whether a person’s weight falls within a healthy range. It is commonly referenced in health assessments, fitness planning, and lifestyle monitoring.

Because this calculator runs directly in your browser, your personal information is not stored or transmitted. You can safely perform calculations anytime for quick reference.

Important Health Note

BMI is only a basic guideline and does not measure body fat, muscle mass, age, or overall health condition. For medical advice, diagnosis, or treatment, always consult a qualified healthcare professional.

Practical Use

This tool can help individuals monitor general weight status, set fitness goals, and better understand standard health ranges. However, official medical evaluations should rely on professional examination rather than BMI alone.

Understanding BMI Results

BMI ranges are commonly used to group weight status into categories that help identify potential health risks. A normal BMI range is generally associated with lower risk of weight-related health conditions, while values outside this range may indicate the need for lifestyle adjustments such as balanced nutrition, regular physical activity, and medical guidance.

However, BMI does not consider important factors like muscle mass, bone density, age, gender, or overall body composition. Athletes and physically active individuals may have a higher BMI due to muscle weight rather than excess body fat.

For accurate health evaluation, BMI should be used only as a general reference and not as a medical diagnosis. Always consult a qualified healthcare professional for personalized health advice or treatment recommendations.