Average Waist size for a 5 year old boy is 21"
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∙ 2012-08-30 11:24:16Average waist size for a 17 year old boy?
The average waist size of a six year old girl is between 22.5 to 25 inches. The average waist size of a boy of the same age is between 23 and 25 inches.
The average waist size for an 11 year old is- Girl: 25-30 inches Boy: 26-31 inches
24-29
40 INCH
20 inches
28 to 32
28 to 32
30-33
30-05 inches .
I am 12 years old I have a body waist of 22". Average would be 25"-30".
A boy is only a couple inches larger than a girls so ask the question "Adverage Waist Size for a 14 Year Old Girl" and you have your answer.