Body-Mass Index

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

The Body-Mass Index (BMI) is the ratio of a person's weight and the square of their height, measured in meters and kilograms. Using United States customary units (inches and pounds), one needs to multiply the BMI ratio by the factor 703.07.


A person with a BMI below 18.5 is underweight, a BMI between 18.5 and 25 is considered normal, and a BMI between 25 and 30 is overweight. Obesity starts at a BMI of 30.

The average adult in the United States is 5' 7" tall and weighs 178 lbs (this represents an average of the statistics for men and women [1]).


Contributed by: Helmut Knaust (April 2013)
Open content licensed under CC BY-NC-SA




[1] Centers for Disease Control. "Body Measurements." (Apr 23, 2013)

Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.