Alternative NamesGrowth chartInformationA growth chart is used to measure and compare a child's growth with what is considered normal for that child's age and gender. The nationally accepted growth charts are based on measurement data collected by the National Center for Health Statistics. They take into consideration height, weight, head circumference, and body mass index (BMI).Height and weight measurements are used to document a child's:Height or length (in inches or centimeters)Weight (in ounces and pounds, or grams and kilograms), based on age in weeks, months, and yearsHeight in children under age 3 is measured while they lie down. Children age 3 and older are measured while they stand. Height and weight measurements are recorded and graphed until the child is 20 years old.Head circu