Track Child Growth Velocity,
Verified Pediatric Curves.
Free child growth calculators: height and weight percentiles, predicted adult height, growth velocity checks, and BMI-for-age screening.
Mid-Parental Height Method
Boys: (Mother + Father + 5 in) / 2; Girls: (Mother + Father - 5 in) / 2: standard genetics formula.
CDC Percentile Trajectories
Tracking steady percentile channel velocity matters far more than where a child ranks on the chart.
Infant WHO Standards
Applies World Health Organization optimal physiological breastfed curves for ages 0–2.
GrowthMath Calculators
Growth Percentile Calculator
Height and weight percentiles for children 2–18 — approximate CDC-based screening with the trend advice included.
Predicted Adult Height Calculator
Mid-parental height prediction — the genetics-based estimate (±2–3 inches) with the sex adjustment built in.
Growth Velocity Calculator
Inches per year between two measurements, judged against age-expected velocity — the trend check pediatricians actually use.
BMI-for-Age Screening Calculator
Child BMI with age-and-sex context — the screening version of the adult metric, interpreted against reference bands.
Evidence-Based Physiology
How to read a growth chart like a pediatrician
Percentiles, channels, and the two findings that actually trigger concern.
The home measurement protocol that makes growth tracking worth doing
Technique, tools, and timing — because a 0.5-inch error can erase a year of real signal.
12 mistakes people make with child growth tracking
The recurring errors we see in child growth tracking — what causes each one, and the habit that prevents it.