BMI Calculator
Calculate your Body Mass Index and check whether your weight falls within a healthy range for your height.
Enter Your Details
Real-time calculation as you type.
Enter your height and weight to see your BMI score, category, and healthy weight range.
What your result means
Your BMI places your weight into a general category (underweight, healthy, overweight or obese) relative to your height.
Good to know
BMI cannot tell muscle from fat or account for age, ethnicity or where fat is stored, so athletes and older adults are often mis-classified.
A number is a starting point, not a plan. Discuss your result with a doctor
Calculate your Body Mass Index to understand whether your weight falls within a healthy range. Quickly assess underweight, normal, overweight, or obesity categories.
How this is calculated
Formula: BMI = weight (kg) ÷ [height (m)]²
BMI categories follow the World Health Organization (WHO) classification: Underweight (<18.5), Normal (18.5–24.9), Overweight (25–29.9), Obese (≥30).
Explore Related Resources
Related Programs
Related Guides
Related Calculators
Need a personalized plan?
Your calculator result is a starting point. Get a doctor-guided plan tailored to your medical history.
Book Free Consultation