The Body Mass Index (**BMI**) Calculator can be used to calculate BMI values based on a persons height and weight.** Calculate you BMI online**. BMI is a fairly reliable indicator of body fatness. Enter your weight and height below to calculate your BMI. Looking for a BMI-slider?

## BMI calculator – kg and cm

## BMI calculator – lbs and inches

## BMI Ranges

**< 16.0**Severely Underweight**16.0 – 18.4**Underweight**18.5 – 24.9**Normal**25.0 – 29.9**Overweight**30.0 – 34.9**Moderately Obese**35.0 – 39.9**Severely Obese**> 40.0**Morbidly Obese

**Formula for calculating BMI:**

Metric units: BMI = weight (kg) ÷ height2 (m)

US units: BMI = (weight (lb) ÷ height2 (in)) * 703

More information about BMI, and how it works, can be found here.