See your BMI on a graph

What is a healthy weight

Check my BMI

Health dangers due to obesity

These problems are identified with overweight and obese adults

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

BMI Prime

Body Mass Index Prime is method of using the results of the BMI calculations to quickly and easily rank a person into a category. Eg:
  • BMI Prime less than 0.74 = Underweight.
  • BMI Prime greater than 0.74 and less than 1.00 = Optimal weight.
  • BMI Prime greater than 1 = Overweight
Bmi Prime is a variation of the Quetelet index. 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.

How it's calculated

Use the body mass formula to get your bmi
  • BMI = weight(kilograms) / height2 (metres2)         (Metric Units)
  • BMI = 703 . weight(pounds) / height2 (inches2)         (Imperial Units)

BMI limitations

BMI calcs ignore variation in physical characteristics.
See wikipedia.org/wiki/Body_mass_index#Limitations for more details.