BMI Calculator

Graph for 170 cm, 123 kg

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Get Your Body Mass 😱

Body mass index, height: 170 Centimeters (Centimetres cm) with weight: 123 Kilograms (Kilos kg)

Health dangers due to obesity

These consequences are related to obese adults

A BMI greater than 25 (overweight) or a Body Mass more than 30 (obese) gives you a real risk of diseases and health conditions, including,:

BMI History

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 is a variant 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 probably overweight.

The formula

This is how BMI is calculated
  • 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 for more details.