Measurement and assessment tools for newborns and infants to use in your practice.

Anthropometric Measurements

Correctly performing anthropometric measurements provides important information about a child’s nutritional status.

Preterm Infant Growth Tools

Intrauterine growth curves are generally accepted as the best tool for assessing the growth of preterm newborns and infants at birth and postnatally up to 50 weeks’ postmenstrual age.

Term Infant Growth Tools

A variety of tools from the World Health Organization and the Centers for Disease Control and Prevention are used to assess growth from infancy through childhood.

The development of this resource was made possible with support from Abbott. The AAP maintains full independence in its editorial and strategic activities. Financial supporters have no influence over AAP content, policies, or leadership decisions.

Last Updated

02/09/2026

Source

American Academy of Pediatrics