Growth Percentile Calculator

June 8, 2026

This Growth Percentile Calculator helps determine how a child’s height or weight compares with others of the same age and gender using standard growth charts.

Growth Percentile Calculator

Date of Birth:

Gender:

Measurement Unit:

Height:

Weight:

Percentile Calculation Method

Percentile = position of a measurement relative to age- and gender-based reference data

Parameters Explained

Age: measured in months or years
Gender: used to select the appropriate growth chart
Height / Weight: compared against reference values

How It Works

The calculator compares the entered measurement with standardized growth charts to determine the percentile, indicating the percentage of children who fall below that measurement.

Ethan Caldwell

Ethan builds the interactive health calculators on Height Growth Blog. Based in Denver, Colorado, he combines a software engineering background with a focus on evidence-based health tech, turning dense clinical guidelines — from CDC growth charts to NIH/IOM dietary references — into tools parents and teens can use in under a minute. Every calculator on the site, from BMI Percentile to Body Fat and Calcium Intake, is built directly from primary sources (NIH, AAP, CDC, Mayo Clinic) and cross-checked against peer-reviewed studies before launch.