12-Year-Old Weight And Height

On this page, you can find out the size of a 12-year-old boy/girl, including height, weight, and head circumference (if). You can see that there are multiple columns of data, including average value, normal range, and larger range. Normal range means that most of the monitored objects (usually 75%) are in this data range, and a larger range contains more data, which means that most of the monitored objects (usually more than 90%) are in this data range.

We have provided the standards of several countries/organizations. There are some deviations in the data results of these countries/organizations. You can choose the data of your country/region as the reference standard. Children under the age of 2 usually use data released by the WHO as a reference standard. If your country is not listed, you can choose the nearby national standards as the reference standard.

If your child’s size (height, weight, and head circumference) is within the normal range, then you don’t have to worry at all; if your child’s size is not within the normal range but in the larger range, then there is no need to panic. You must understand that every child is unique and has a growth pattern. At this time, you can appropriately adjust your child's diet and exercise habits. If your child's size is outside the larger range, then you'd better consult a doctor.

Popular age(year): 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

United States standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 143.5 148.79 143.84 - 153.85 136.88 - 158.48
girl 12 143.5 150.89 145.89 - 155.85 138.61 - 160.28
boy 12 144.5 149.31 144.33 - 154.39 137.33 - 159.04
girl 12 144.5 151.49 146.5 - 156.43 139.22 - 160.84
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
boy 12 143.5 40.27 35.52 - 46.34 30.27 - 53.44
girl 12 143.5 41.46 36.42 - 47.92 30.87 - 55.47
boy 12 144.5 40.67 35.87 - 46.81 30.55 - 53.98
girl 12 144.5 41.83 36.75 - 48.33 31.15 - 55.95

Canada standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 149.08 144.3 - 153.86 135.75 - 158.16
girl 12 144 151.23 146.62 - 155.85 138.37 - 160
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
boy 12 144 38.94 34.45 - 44.55 28.35 - 50.9
girl 12 144 41.78 36.45 - 48.26 29.04 - 55.35

United Kingdom standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 148.36 N/A N/A
girl 12 144 149.76 N/A N/A
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
boy 12 144 38.12 N/A N/A
girl 12 144 40.32 N/A N/A
Head Circumference (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
girl 12 144 55.13 N/A N/A
boy 12 144 54.36 N/A N/A

German standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 152.22 147.04 - 157.42 137.87 - 162.13
boy 12 144 155.43 150.02 - 160.86 140.36 - 165.75
girl 12 144 154.31 149.7 - 158.92 141.46 - 163.07
girl 12 144 157.22 152.65 - 161.78 144.49 - 165.89
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
boy 12 144 43.25 37.67 - 50.52 30.4 - 59.21
boy 12 144 45.82 39.76 - 53.62 31.81 - 62.8
girl 12 144 44.87 38.91 - 52.53 31.06 - 61.51
girl 12 144 47.59 41.48 - 55.43 33.39 - 64.59
Head Circumference (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 54.36 53.3 - 55.4 51.38 - 56.33
boy 12 144 54.59 53.53 - 55.64 51.59 - 56.58
girl 12 144 53.87 52.85 - 54.91 51.07 - 55.87
girl 12 144 54.12 53.1 - 55.17 51.31 - 56.13

China standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 151.9 147 - 157 138.1 - 161.5
girl 12 144 152.4 148 - 156.7 140.2 - 160.7
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
girl 12 144 40.77 36.04 - 46.42 29 - 52.49
boy 12 144 42.49 37.03 - 48.86 29.09 - 55.5

India standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 148.4 143.3 - 153.5 133.2 - 158.6
girl 12 144 148.4 143.7 - 153 134 - 157.5
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
boy 12 144 39 33.3 - 46 24.9 - 54.8
girl 12 144 39.8 34.5 - 46 26.2 - 53.4

Japan standard

Height (cm/centimetre)
gender age(in years) age(in months) average height(cm) normal range(cm) larger range(cm)
boy 12 144 149.1 141.5 - 156.7 N/A
girl 12 144 149.6 143.3 - 155.9 N/A
Weight (kg/kilogram)
gender age(in years) age(in months) average weight(kg) normal range(kg) larger range(kg)
girl 12 144 42.6 34.1 - 51.1 N/A
boy 12 144 42.4 32.6 - 52.2 N/A

References

  1. World Health Organization(WHO): Child growth standards.
  2. The United States Centers for Disease Control and Prevention (CDC or U.S. CDC): https://www.cdc.gov/growthcharts/who_charts.htm.
  3. Canadian Pediatric Endocrine Group: https://cpeg-gcep.net/content/who-growth-charts-canada.
  4. (United Kingdom) Royal College of Paediatrics and Child Health : https://www.rcpch.ac.uk/resources/growth-charts
  5. (German) Robert Koch Institute (RKI) : https://www.rki.de/EN/Content/Health_Monitoring/Health_Reporting/GBEDownloadsB/KiGGS_referenzperzentile.pdf?__blob=publicationFile
  6. China "中国7岁以下儿童生长发育参照标准": https://baike.baidu.com/item/中国7岁以下儿童生长发育参照标准
  7. Japan : https://www.suku-noppo.jp/data/

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