Body Mass Index (BMI) Calculator

BMI is a formula used to estimate how much body fat a person has based on their age, weight and height. Using the BMI formula and the persons measurements the BMI number is calculated. This number can then be plotted on a chart that shows whether that person is average, below, or above weight for their height and age.

What the results mean:

• BMI Percentile = less than 5
  You may be an unhealthy weight (underweight) for your height and age. Check out our healthy diet page for some great tips!


• BMI Percentile = 5-90
  You’re a healthy weight for your height and age! Keep up the good work!


• BMI Percentile = 91-98
  You may be an unhealthy weight for your height and age Click here to find some small steps that will make a big difference!


• BMI percentile = 98 and over
  You are an unhealthy weight for your height and age. Your first step to a new and healthier you is one small click away!