Consumer Health

Information about BMI and interpreting this number for adults.

Information about BMI and interpreting the BMI percentile for children and teens.

Add this widget to your website to let anyone calculate their BMI. BMI is a reliable indicator of body fatness for most people. It is used to screen for weight categories that may lead to health problems. This calculator provides BMI and the corresponding weight category. Use this calculator for adults, 20 years old and older.

Add this widget to your website. This calculator provides BMI and the corresponding BMI-for-age percentile on a CDC BMI-for-age growth chart. Use this calculator for children and teens, aged 2 through 19 years old.