Depends..........
an average nine year old boy's weight is about 75 to 90 pounds
Average weight of 9 year old boy is - 63.0 lb (28.6 kg)
9st
85-110 pounds
thedore roosevelt and Franklin roosevelt
40
a good weight for a 9 year old is 35
Median weight a 10 year old boy is 75 lbs. Range is 55-100.
The average 5'10 boy weighs anywhere from 150lbs - 180lbs.
For a seventeen year old with a height of 5'10, their target weight should be 160lbs
The target weight for a male 14 year at 5'11 should be about 164 according to studies.
The weight would be about 42.99kg