Body Mass Index
Understanding Your Body Mass Index (BMI)
Your Body Mass Index (BMI) is a calculation based on your
height and weight that you can use to determine if you are
underweight, at a healthy weight, overweight or obese. It's
easy to do and quite accurate unless you are very muscular
or if you are very obese.
What Does My BMI Mean?
Your BMI indicates your weight status:
Below 18.5 Underweight
18.5 – 24.9 Normal
25.0 – 29.9 Overweight
30.0 and Above Obese
Why Do I Need to Know My BMI?
A BMI of 25 or above is a risk factor for overweight and
obesity related diseases such as cardiovascular disease,
osteoarthritis, some types of cancer and type II diabetes. A
low BMI -- under 18 -- increases your risk for osteoporosis
or may be a sign of a health problem. If you have a BMI of
above 27 or below 18, you should see your doctor to have any
additional risk factors assessed and for guidance on how to
lose (or gain) weight.
How Do I Calculate My BMI?
You can use the formula in English: Your Weight in Pounds /
(Your Height in Inches)2 x 703
or in Metric:
Your Weight in Kilograms / (Height in Meters)2