1. What is BMI?
B is body. M is mass. I is index. BMI is used to estimate your total amount of fat. It is designed for men and women over the age of 18.

2. What's the average weight, height and BMI of a runway model?
The average runway model is estimated to be 5 feet 9 inches tall and to weigh 110 ib s, resulthing is a BMI of just 16.

3. How can you calculate someone's BMI?
In metric measurements, it is obtained by dividing a person' s weight in kilograms by their height in metres squared. In the English system, it is calcutaled by dividing weight in pounds by height in inches squared, and multiplying that total by 703.