BMI calculator, Body Mass Index, approximates your level of body fat based on your height and weight.

Along with your child’s gender and age the BMI can be used to determine their percentile and resulting health risk indicator.

This BMI Calculator only applies to Children and Teens, those 2 through 19 years old. If you are 20 years old or over then please use the Adult BMI Calculator.

• Enter the Date of Birth
• Enter the Gender
• Enter the height in feet and inches or total inches
• Enter the weight
• Click on the Calculate BMI button to determine your BMI
• Review the results

The data for determining the percentile for an age and gender was adapted from the data and guidelines as released by the CDC.

The BMI Calculator is only accurate for heights up to 7 feet.

Note that BMI Calculators are NOT accurate if the person has a muscular build since the calculator has no way to know the body fat percentage of the individual.

Note this BMI Calculator uses Javascript. If you have Javascript turned off or you have problems running the BMI calculator click on How to calculate BMI - Formula to see how you can manually calculate your BMI.