Baby Growth Percentile Calculator

Track your baby's weight and length percentiles from birth to 24 months using WHO growth standards.

πŸ‘Ά Baby Growth Percentile

Results

Weight Z-Score0.33
Weight Percentile63th
Length Z-Score-0.23
Length Percentile41th

πŸ’‘ Understanding Baby Growth Percentiles

Growth percentiles compare your baby to a reference population of healthy children. A 50th percentile weight means your baby weighs more than 50% of babies the same age and sex. The WHO standards used here are based on breastfed infants worldwide.

Z-scores express how far a measurement is from the median. A z-score of 0 = 50th percentile, +1 = ~84th, βˆ’1 = ~16th. Values between βˆ’2 and +2 are considered normal range.

12-month boy, 10 kg, 75 cm: weight β‰ˆ 50th percentile (right at median), length β‰ˆ 38th percentile.

Baby Growth Percentile Calculator FAQ

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