What Are the Average Height and Weight for a 10-Year-Old Girl?

For a 10-year-old girl, average height and weight fall within well-established growth percentiles defined by major pediatric references—including the World Health Organization (WHO) Child Growth Standards and the U.S. Centers for Disease Control and Prevention (CDC) Growth Charts. According to the CDC’s 2000 growth reference data—widely used in clinical practice in North America—the 50th percentile (median) height for a 10-year-old girl is approximately 138.4 cm (about 4 feet 6.5 inches), with a typical range spanning roughly 132–145 cm (5th to 95th percentiles). Her median weight is around 31.9 kg (70.3 lbs), with a clinically normal range of approximately 25–43 kg.

It is essential to interpret these values in context: growth patterns are highly individualized and influenced by genetics, nutrition, pubertal timing, chronic health conditions, and socioeconomic factors. A child consistently tracking along the same percentile curve over time generally indicates healthy growth—even if that curve falls below the 5th or above the 95th percentile. Conversely, a rapid crossing of two or more major percentile lines (e.g., dropping from the 75th to the 25th percentile over 6–12 months) warrants clinical evaluation for underlying endocrine, gastrointestinal, or psychosocial contributors.

Healthcare providers do not rely solely on isolated height and weight measurements. Instead, they assess growth velocity, body mass index (BMI) for age, pubertal staging (Tanner scale), bone age via radiography when indicated, and family history. BMI—calculated as weight in kilograms divided by height in meters squared—is plotted on sex- and age-specific charts; for a 10-year-old girl, a BMI between the 5th and 85th percentiles is considered healthy weight, while ≥95th percentile defines obesity per CDC criteria.

Parents and caregivers should avoid comparing children to population averages as benchmarks for “normalcy.” Rather, consistent, steady growth aligned with the child’s genetic potential—and absence of red flags such as fatigue, delayed puberty, recurrent illness, or significant deviation from prior growth trajectory—remains the most reliable indicator of healthy development.