BMI calculator
Enter your weight and height for your Body Mass Index and its standard category. A general screening number — not medical advice.
BMI = 703 × weight(lb) ÷ height(in)². It’s a general screening number, not a measure of health, body composition, or fitness — and not medical advice.
How is BMI calculated?
BMI = 703 × weight in pounds ÷ (height in inches)². It's a quick screening number that relates weight to height; it doesn't measure body composition, muscle, or health directly.
What are the BMI categories?
The standard adult ranges are: under 18.5 underweight, 18.5–24.9 normal range, 25–29.9 overweight, 30 and above obese range. These are general screening bands, not a diagnosis.
Is BMI a measure of health?
No — it's a general screening number only. It doesn't account for muscle mass, body composition, or individual factors, and it isn't medical advice. Talk to a licensed professional about your health.