# Is my weight healthy?

How much should I weigh?

## Health dangers due to obesity

These risks are linked with overweight and obese adults

Adults whose BMI is greater than 25 (overweight) or with a BMI greater than 30 (obese) have an expanded risk for varied diseases and health conditions, including,:

## Details

BMI 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 Prime is a variation of the Quetelet index. Put simply, if you have a Prime of less than 0.74, you are underweight. If your prime is more than 0.74 and less than 1.00, your weight is ideal. If your BMI prime is more than 1 you are defined as being overweight.

## Work it out!

You can use the following formula to calculate your BMI :
• BMI = weight(kilograms) / height2 (metres2)         (Metric Units)
• BMI = 703 . weight(pounds) / height2 (inches2)         (Imperial Units)

## BMI limitations

BMI is particularly inaccurate for people who are very fit or athletic, as their high muscle mass can classify them in the overweight category by BMI, even though their body fat percentages frequently fall in the 10-15% category, which is below that of a more sedentary person of average build who has a normal BMI number.
See wikipedia.org/wiki/Body_mass_index#Limitations for further clarification.