BMI (Body Mass Index) is a measurement of body fat based on height and weight that applies to both men and women between the ages of 18 and 65 years. BMI can be used to indicate if you are overweight, obese, underweight or normal. The Body Mass Index (BMI) Calculator can be used to calculate your BMI value and weight status while taking your age into consideration. Use the “metric units” tab if you are more comfortable with the international standard metric units.
Your BMI is a measurement of your body weight based on your height and weight. Although your BMI does not actually “measure” your percentage of body fat, it is a useful tool to estimate a healthy body weight based on your height. Due to its ease of measurement and calculation, it is the most widely used diagnostic indicator to identify a person’s optimal weight depending on his height. Your BMI “number” will inform you if you are underweight, of normal weight, overweight, or obese. However, due to the wide variety of body types, the distribution of muscle and bone mass, etc., it is not appropriate to use this as the only or final indication for diagnosis.
Your BMI is based on your height and weight. It’s one way to see if you’re at a healthy weight.
Underweight: Your BMI is less than 18.5
Healthy weight: Your BMI is 18.5 to 24.9
Overweight: Your BMI is 25 to 29.9
Obese: Your BMI is 30 or higher
Body Mass Index Formula
The formulas to calculate BMI based on two of the most commonly used unit systems:
BMI = weight(kg)/height2(m2) (Metric Units)
BMI = 703·weight (lb) /height2 (in2) (U.S. Units)
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