Body Fat Calculator

Being overweight is dangerous

These difficulties are tied to the fat and overweight

A BMI of greater than 25 (overweight) or a BMI more than 30 (obese) have a risk of diseases and health conditions, including,:

• Coronary heart disease (plaque build-up along the inner walls of the arteries of the heart)
• Stroke (loss of brain function due to a disturbance in the blood supply to the brain)
• Gallbladder disease (gallstones, disruption of bile functions )
• Osteoarthritis (degenerative joint disease)
• Sleep apnea and respiratory problems (problems breathing during sleep, chest and lung problems)
• Hypertension (raised blood pressure)
• Dyslipidemia (raised LDL cholesterol, reduced HDL cholesterol)
• Diabetes mellitus type 2 (high blood sugar)
• Some cancers (endometrial, breast, and colon)

Details

B.M.I. Prime is simple way of defining a single figure that is not immedieately related to any other units of measurement, but which can quickly and easily rank a person into a category. Eg:

• BMI Prime < 0.74 = Underweight
• BMI Prime > 0.74 and < 1.00 = Optimal weight
• BMI Prime > 1 = Overweight

BMI, sometimes known as the Quetelet index, is a measure used to estimate a person's body shape based upon a person' weight and height. It originated in Belguim around the 1840's by Adolphe Quetelet. It is a simple calculation based on the individual's body weight divided by the square of their height.

Do the sums

The formula below is used to measure BMI

• BMI = weight(kilograms) / height² (metres²)         (Metric Units)
• BMI = 703 . weight(pounds) / height² (inches²)         (Imperial Units)

BMI limitations

BMI is proportional to the mass and inversely proportional to the square of the height. So, if all body dimensions double, and mass scales naturally with the cube of the height, then BMI doubles instead of remaining the same. This results in taller people having a reported BMI that is uncharacteristically high, compared to their actual body fat levels.
See wikipedia.org/wiki/Body_mass_index#Limitationsinfomation.