Free Online Calculators » Body Mass Index

The body mass index (BMI), or Quetelet index, is a statistical measure based on a person's weight and height. It is used to estimate a healthy body weight.

Initial Data



Body Mass Index (BMI)


Body Mass Index

CategoryBMI range
Starving< 16
Underweight16 - 18.9
Normal19 - 25
Overweight25.1 - 30
Obese30.1 - 35
Clinically Obese35.1 - 40
Morbidly Obese> 40.1