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Average height & weight by month

The values below are the official 50th percentile (median), not a simple arithmetic average.

This table is not a diagnostic threshold

These numbers show where the middle of the growth curve sits at each age — they don't determine whether an individual child's growth is "normal" or not. For an assessment, talk with a pediatrician or use Korea's national infant health checkup.

Representative ages

공식 자료

For the full 0–60 month table with month-by-month values, see the interactive Korean version.

Boys

AgeHeight (cm)Weight (kg)Head circ. (cm)BMI
0 mo49.93.334.5
3 mo61.46.440.5
6 mo67.67.943.3
9 mo72.08.945.0
12 mo75.79.646.1
18 mo82.310.947.4
24 mo87.112.248.316.0
36 mo96.514.749.815.9
48 mo103.116.850.515.9
60 mo109.619.051.115.9

Girls

AgeHeight (cm)Weight (kg)Head circ. (cm)BMI
0 mo49.13.233.9
3 mo59.85.839.5
6 mo65.77.342.2
9 mo70.18.243.8
12 mo74.08.944.9
18 mo80.710.246.2
24 mo85.711.547.215.7
36 mo95.414.248.815.8
48 mo101.916.349.615.7
60 mo108.418.450.215.7

BMI has official reference values starting at 24 months only; earlier ages show "—".

Source

2017 Korean Children and Adolescents Growth Chart (jointly established by the Korea Disease Control and Prevention Agency and the Korean Pediatric Society, based on National Health Insurance Service LMS data) · dataset version 2017-kdca-nhis-lms

작성일 2026-08-07 · 검토일 2026-08-07

🇰🇷 South Korea standard

This information is based on official data and healthcare programs in South Korea. Growth references, screening schedules, vaccination programs, and healthcare systems may differ by country.

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