New BMI Calculator

The new BMI calculator allows you to calculate a more truthful BMI, which takes height into consideration better.

New BMI Calculator


According to the traditional mathematical formula, your BMI would be:

Morbidly underweight0 – 14.9
Significantly underweight15 – 17.9
Slightly underweight18 – 18.9
Normal weight19 – 24.9
Slightly overweight25.0 – 29.9
Significantly overweight30.0 – 34.9
Severely obese35.0 – 39.9
Morbidly obese40.0 or more

Using the New BMI Calculator

The new, more truthful way to calculate BMI is based on a formula developed by a British mathematician, which makes shorter people appear heavier and taller people slimmer. The new method takes the distortion resulting from height into consideration better.

Enter your height and weight in the fields above. The calculator displays your Body Mass Index and a description of what the BMI indicates.

Please remember that BMI calculated in this way is also only an approximate indicator of weight. BMI is always affected by physique, muscularity and other possible factors.

Compare the result to the traditionally calculated BMI.

Sources and more information
  1. Nick Trefethen: BMI
  2. BMI: Does the Body Mass Index need fixing

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