Growth Percentile Calculator
Enter age, sex, and measurements to see how they compare to national averages on a standard bell curve.
Population Distribution (Bell Curve)
What Does the Percentile Mean?
Percentiles are the standard metric used by pediatricians to track growth. They compare an individual's measurements against a large national reference group of healthy children of the exact same age and sex.
If you fall in the 75th percentile for height, it means you are taller than 75% of peers your age, and 25% of peers are taller than you. The 50th percentile represents the exact median (the dead center of the bell curve).
Note: This calculator uses simplified, interpolated data based on standard growth curves for ages 2 to 20. It is designed for educational purposes and should not replace professional medical advice.