BMI (Body Mass Index) Calculator

Enter weight: kg lbs

Enter height: cm in

Be sure the weight and height units are correct and click Calculate:

BMI is:

Interpreting BMI results

A BMI above the 85th percentile is considered overweight.

A BMI above the 95th percentile is considered obese.

To give you an idea of what BMIs are by age and sex, look at the tables below. You can download a complete BMI percentile chart (in PDF format) for boys ages 2-20 and for girls ages 2-20.