Baby Growth Calculator
Enter your baby's measurements to see their growth percentiles based on WHO standards. Track weight, length, and head circumference.
Understanding Percentiles
A 50th percentile means your baby is average - half of babies are larger, half are smaller. Being in the 25th or 75th percentile is completely normal. What matters most is that your baby follows their own growth curve consistently over time.
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Download Free on iOSDisclaimer: This calculator uses WHO Child Growth Standards and provides estimates for educational purposes only. Percentiles are approximations and should not replace professional medical evaluation. Your pediatrician uses precise growth charts and considers many factors when assessing your baby's growth. Always discuss growth concerns with your healthcare provider.
Understanding Baby Growth Percentiles
Growth percentiles help you understand how your baby's size compares to other children of the same age and sex. This calculator uses the World Health Organization (WHO) Child Growth Standards, which are based on healthy breastfed infants from diverse backgrounds around the world.
What the Numbers Mean
If your baby is at the 50th percentile, they're right in the middle - half of babies are larger and half are smaller. A baby at the 25th percentile is smaller than average but perfectly healthy. The key is consistent growth along your baby's own curve, not reaching any particular percentile.
When to Talk to Your Doctor
While this calculator provides helpful estimates, your pediatrician uses more precise measurements and considers your baby's individual factors including genetics, feeding method, and overall health. Discuss any concerns about growth at your regular well-baby visits.