Child Growth Position Visualization

What this visualization shows

This tool compares a child’s entered weight and height with a small, interpolated reference table. It then shows an approximate position in that table. It does not use the official, sex- and age-specific monthly LMS datasets used by WHO and CDC growth charts, so it can differ materially from an official chart—especially near the low and high ends of a distribution.

Official growth assessments use measurements taken consistently over time, the correct measurement method for the child’s age, and clinical context such as birth history, diet, development, and family growth patterns. A position from one measurement should not be treated as a diagnosis or as evidence that a child is healthy or unhealthy.

WHO and CDC charts

In the United States, clinicians commonly use WHO standards from birth through 24 months and CDC references after age two, with age-appropriate length and standing-height methods. Those charts are more detailed than this visualization and account for distributions that are not perfectly symmetric. Use your child’s clinical growth chart for decisions or if measurements change substantially over time.

When to ask a clinician

Contact a pediatrician if you are concerned about a child’s growth, feeding, development, or a change in their usual growth pattern. Bring repeated measurements and the dates they were taken; a clinician can decide which official chart and measurement method are appropriate.