Infant Percentile Calculator

Suitable for infants up to 36 months old

Birth Date:

Gestational Age:

Calculate Date:

Height (cm):

Weight (grams):

Head Circumference (cm):

Gender:

Male Female

Growth Standard:

WHO CDC

* Enter the infant's details to calculate growth percentiles based on WHO 2006 or CDC 2000 standards.

Infant Percentile Calculation

This calculator provides the following information by performing calculations:

Percentiles and SD Scores: Calculates height, weight, and head circumference percentiles and SD Scores based on WHO 2006 or CDC 2000 growth standards.
Gestational Age Adjustment: Adjusts for gestational age to provide corrected growth metrics.
Growth Classification: Classifies the infant as SGA (Small for Gestational Age), AGA (Appropriate for Gestational Age), or LGA (Large for Gestational Age) for infants up to 3 months.
Term Classification: Determines if the infant was born preterm, term, or postterm based on gestational weeks.

Note: This calculator is designed for educational and informational purposes only. Consult a pediatrician for specific health assessments.

Data references are based on the WHO 2006 Child Growth Standards and CDC 2000 Growth Charts, adapted for infants up to 36 months.

Infant Percentile Calculator Version 2.1

Published: May 10, 2025
Last Updated: May 10, 2025