Conventional Standard

BMI calculator

Your Height (centimeters)
Your Weight (kilograms)
BMI: Kg/m2
Body Surface Area: m2 

BMI Score

Weight Status BMI
Underweight <18.5
Healthy weight 18.5 - 24.9
Overweight 25 - 29.9
Obesity I 30 - 34.9
Obesity II 35 - 39.9
Obesity III or Morbid obesity 40 or more

BMI = Weight ( in kg ) divided by square of Height ( in metre ) = unit being kg/metre2

Body Surface Area (The Mosteller formula) = ( ( Height(cm) x Weight(kg) ) / 3600 )1/2

The calculators allow you to enter patient specific information to calculate a simple score. All information is provided for educational purposes only. This information is not intended to replace clinical judgement. All calculations must be rechecked and should not be used alone to guide patient care. The user assumes sole responsibility for any decisions or action taken based on the information contained here.