Normal weight for 13 year olds (kg)

The average weight for 13 year old teenage boys is 45.8 kg and 13 year old teenage girls average 46 kg1 The tables below show the distribution of weight by percentile of the 13 year year old population.

Current units = kilograms. View this page in pounds.

13 year old girls under 35 kg or over 61 kg and 13 year old boys who weigh less than 34 kg or more than 60 kg may want to consult with a doctor. The American Academy of Pediatrics recommends that children who's weight is outside the 5th or 85th percentiles seek professional advice to determine if further evaluation is needed2.

Around the age of 13, adolescents experience significant physical and emotional changes. On average, a 13-year-old weighs approximately 46 kg for boys and 46 kg for girls based on CDC growth charts1. As they transition into puberty, teenagers may experience variations in weight due to hormonal fluctuations and growth spurts. Encouraging healthy lifestyle choices and body positivity can support their self-esteem and overall well-being.

Body weight percentile table for 13 year old teenage boys

Percentile Weight
3rd 33 kg
5th 34.2 kg
10th 36.3 kg
25th 40.4 kg
50th 45.8 kg
75th 52.7 kg
90th 60.4 kg
95th 66.1 kg
97th 70.3 kg

Body weight percentile table for 13 year old teenage girls

Percentile Weight
3rd 33.4 kg
5th 34.6 kg
10th 36.6 kg
25th 40.6 kg
50th 46 kg
75th 53 kg
90th 61.3 kg
95th 67.6 kg
97th 72.4 kg

Source Citations

  1. Robert J. Kuczmarski Dr.P.H. et al., Centers for Disease Control and Prevention, U.S. Department of Health & Human Services 2000 CDC Growth Charts for the United States: Methods and Development
  2. American Academy of Pediatrics Is Your Child Overweight?

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