I'm a girl and I'm 4'11'' and I'm 12 and a half years old, and I weigh about 80 pounds, and I'm under average. So I'm guessing that a 12 year old girl that is 4'9'' would\should weight about 75-90 pounds.
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Around 110 lbs should be a normal body weight for a 12 year old.
The average weight for a 12 year old at 5ft 5 is between 80 and 100 pounds.
the avrige for a 12 year old is 8 st
well the average weight should be from 90-120.
115 pounds
105 or so
105
120
12 pounds
99 pounds
I believe the average weight for a 12 year old is around 100-140 lbs. The average height is 5 ft-5,10.I know a kid that's 12 an 5'6.The average height is 5'1-5'4