Main sections

Due to the lapse in government funding, only websites supporting excepted functions will be updated unless otherwise funded. As a result, the information on this website may not be up to date and the agency will not be able to respond to inquiries until appropriations are enacted.

Updates regarding government operating status and resumption of normal operations can be found at https://www.opm.gov/.

Section navigation

girlshealth.gov logo

http://www.girlshealth.gov/

Find your Body Mass Index

Body mass index (BMI) is a tool used to measure body fat. It is based on your height and weight. Your doctor may use your BMI to see if you are a healthy weight. The doctor takes your BMI number and compares it to the BMI numbers of other people your age. The comparison is called a percentile.

Choose your age:

Enter your weight, in pounds.
(For example, 110)

Enter your height, in inches.
(For example, 62, instead of 5ft 2in)

This calculator is for girls ages 10 to 16 who are not pregnant. Your result is based on your age, so it may not be as correct if you are close to your next birthday. Our calculator gives you just a general idea. Talk with a doctor about your BMI.