Body Mass Index (BMI) Calculator

Given your height and weight, the JavaScript below calculates your Body Mass Index. BMI is a popular rough guide to whether you've achieved your ideal weight.

BMI Calculator
BMI Interpretation Guide

Units: English (inches and pounds) Metric (centimeters and kilograms)

Height       Weight


Body Mass Index: (rounded to one decimal place)
18.4 or lower=Underweight
18.5 to 24.9=Normal
25.0 to 29.9=Overweight
30.0 to 34.9=Obese class I
35.0 to 39.9=Obese class II
40.0 or higher=Obese class III