Information about how BMI is a screening, individual health, and population health measure.
Frequently asked questions about BMI, including how it is used and how it should be interpreted.
For adults, body mass index categories are underweight, healthy weight, overweight, and obesity.
Obesity in children and teens is defined as a BMI at or above the 95th percentile for sex and age.
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BMI calculator for adults aged 20 years and older.
BMI and BMI percentile calculator for children and teens ages 2 to 19 years.
Follow these instructions to take accurate height and weight measurements for children or teens.
The Children's BMI Tool for Schools is an Excel spreadsheet intended for use by school, child care,...
Access the code to add CDC's Adult BMI Calculator Widget to your website.
Access the code to share CDC's Child and Teen BMI Calculator as a widget on your website.