Body Mass Index (BMI) Calculator

Provides a guideline based on weight and height to determine whether you are underweight or overweight. A BMI of 20-25 is considered a healthy range while scores greater than 25 indicate an overweight or obese condition.

Please fill in the details below and click the button to calculate your Body Mass Index figure.





Personal Details

Height : feet       inches
Weight :   Lbs
Enter your details above


 
Risk of Associated Disease According to BMI and Waist Size
PBMI Waist less than or equal to 40 in. (men) or 35 in. (women) Waist greater than 40 in. (men) or 35 in. (women)
18.5 or less Underweight -- N/A
18.5 - 24.9 Normal -- N/A
25.0 - 29.9 Overweight Increased High
30.0 - 34.9 Obese I High Very High
35.0 - 39.9 Obese II Very High Very High
40 or greater Extremely Obese Extremely High Extremely High



How to Determine Whether Your Weight Is Healthy


If your BMI is 18.5 or less you are considered to be underweight.
If your BMI is in the range 19 to 24.9 you have a healthy weight.
If your BMI is in the range 25 to 29.9 you are considered to be overweight and may incur moderate health risks. For example, heart disease, diabetes and high blood pressure are all linked to being overweight.
If your BMI is 30+ you are considered to be obese. Obesity is associated with increased risk of cancer, heart disease and other health problems. A BMI of 30 and over increases the risk of death from any cause by 50 to 150 percent, according to some estimates.
If your BMI is 35+ and you have a waist size of over 40 inches (men) and 35 inches (women) you are considered to be at especially high risk for health problems.
If your BMI is 40+ you are considered to be seriously obese and at a very serious risk of health problems.

Note: Above BMI 25, the higher the BMI, the greater the risk of developing additional health problems.



Body Mass Index and Weight Loss

According to health experts, people who are overweight but who have no other health risk factors (such as high cholesterol or high blood pressure) should focus on healthy eating and regular exercise to keep from gaining additional weight.

For people who are overweight and also have health risks, they recommend trying to actively lose weight. Consult your doctor or other health professional before beginning any exercise or weight-loss programme.



Health Risks of Obesity

High blood pressure and stoke are twice as common in obese people.
Evidence is strong that obesity increases the risk of breast cancer (after menopause), womb cancer and kidney cancer.
Obesity may also increase the risk of colon cancer.
Gall bladder disease is three times as likely to occur in middle-aged obese women.
Diabetes is four times more common in middle-aged obese people than in middle-aged people of normal weight.
Coronary heart disease is twice as common in obese men under 45.
Osteoarthritis is more painful and less easily treatable if the person is obese.
Severe obesity may cause shortage of breath, varicose veins, backache and even psychological problems.
Remember, if your Body Mass Index is 30+, you are obese.

 

 
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