There is no actual ideal body weight calculation for an 11 year old like we have for adults. Using the adult calculation, you should weigh any where from 86-105 pounds. Where you stand in that calculation would depend on your body frame size (small, medium, or large). But again- THIS MAY NOT BE CORRECT - those numbers are based on a calculation for adults.
The best way to see where you are weight-wise, for your age, is to find your BMI (body mass index) by using the equation:
weight (in pounds) ÷ height (in inches)÷ height (in inches) x 703
so you would have your weight ÷59 ÷59 x 703
This will give you your BMI. Once you have your BMI you can look on a BMI chart for girls aged 2-20. Here is a link to one:
http://www.texaschildrenspediatrics.org/healthlibrary/pa_bmigirl_art.aspx
A Ten year old girl should weigh about 70 to 80 pounds.
If you are 4'7 and are an 8 year old girl you should weigh 60 lbs.
she should weigh 115-120 lbs
122
80 pounds
An 11 year old girl should wiegh around 110lbs-125lbs A 5'4 11 year old girl should weigh around 108lbs-130lbs
A 5'8 11 year old girl should weigh about 147 pounds. This ensures that the girl is eating right and healthy.
Should weigh from about 115-120 pounds
she should at least weigh about 75 pounds
a 13 year old girl should weigh 115 pounds
42 pounds
100-125 pounds