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Body Mass Index (BMI)

What is BMI? 

Body Mass Index or BMI is the measurement of your weight in relation to your height.

Your BMI is a very easy number to figure out either from a chart or calculating it manually. More and more, the medical community uses a person’s BMI combined with abdominal circumference (waist size) to determine risk for serious illnesses.

What does your BMI tell you about your health?

A high BMI # can be an indicator for type 2 diabetes, hypertension, stroke and heart disease.

How to Measure Your BMI

Step 1:
Step on scale and remember to remove your shoes. Determine your weight in pounds or kilograms.

Step 2:
Measure your height in inches or meters. Again remember to remove your shoes.

Step 3:
Take your height and weight and place them in one of the formula’s below. If you don’t feel like doing a manual calculation use the BMI calculator link to make things even easier.






BMI Scores

  • Underweight Below 18.5
  • Normal 18.5 to 24.9
  • Overweight 25.0 to 29.9
  • Obese 30.0 and above


The Body Mass Index is only accurate for healthy adults aged 18 to 65. It is not appropriate for infants, children, adolescents, pregnant or breastfeeding women or adults over age 65. It may also not be a good indicator of health risk for very muscular athletes or body builders.

Abdominal Circumference

In addition to BMI it is also important to measure your abdominal circumference (waist). This is not your pant size. You measure your waist by placing the tape measure around the widest portion of your abdomen.


*Please see directions below on how to measure properly

How to measure 

How to measure abdominal circumference

Men have an increased risk of obesity related conditions when their waist size exceeds 40 inches or 102 cm. For women it is 35 inches or 88 cm.


  • 69-94cm = Super
  • 94-102cm = Attention
  • 102cm and above = Risk


  • 60-80cm = Super
  • 80-88cm = Attention
  • 88cm and above = Risk


Check your BMI and abdominal circumference yearly.



Blood Pressure U.K.
John Hopkins University
Mayo Clinic
Canadian Diabetes Association
Heart & Stoke Foundation

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