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A child growth percentile calculator plots a child’s height, weight, and head circumference against WHO (0–2 years) or CDC (2–20 years) growth curves. A child at the 50th percentile is exactly average; the 75th percentile means they are larger than 75% of children the same age and sex.

Wzór

H

Height/Length (in or cm) — Child’s measured height or recumbent length

W

Weight (lbs or kg) — Child’s weight

HC

Head Circumference (in or cm) — Circumference of child’s head at widest point

P

Percentile (%) — Position on growth curve relative to same-age peers

Przewodnik krok po kroku

1. 1Measure the child’s height, weight, and/or head circumference accurately
2. 2Plot the measurement on the appropriate growth chart for age and sex
3. 3Identify the percentile by seeing which curve the measurement falls on
4. 4Track percentiles over time — consistent tracking along a curve is more important than any single reading

Rozwiązane przykłady

Częste błędy do unikania

• ✕Using CDC charts for children under 2 (WHO charts are recommended for 0–2 years)
• ✕Panicking about a single measurement instead of tracking the trend over multiple visits
• ✕Comparing siblings — each child has their own growth pattern

Często zadawane pytania