The meaning of BMI's

The Body Mass Index (BMI) is a guide to whether someone is underweight, normal weight or overweight. You can calculate the BMI using this formula:

BMI = mass in kg ÷ (height in m)2

Question: What is the BMI of a 1.7 metre-tall person with a body mass of 60kg?

Answer:  BMI = 60 ÷ (1.7)2 = 20.8

In this example, the person would be at the ideal weight for their height.

                    The meaning of BMI's

    BMI                                         meaning
under 18.4                                 underweight
between 18.5 and 24.9              ideal weight
between 25 and 29.9                 over the ideal weight
between 30 and 39.9                 obese
over 40                                      very obese