Well, an adult woman who is 5'4" is supposed to weigh between 110 and 130 pounds (or 120 on average). So I suppose that would be about right for a 15 year-old girl, too.
depends on how tall you are,
The normal weight for a girl that is 56 inches tall is roughly 77 pounds. Of course this number can be higher or lower depending on how the child's skeletal system is made.
60 Kg
80 pounds
That depends on how tall she is.
93 pounds
130 to 200 lbs
65 + kgs
The ideal weight for someone 5' 5" is between 120lbs and 150lbs.
I found a calculator that will determine what your ideal weight according to height will be. The link for that is below.
The average weight for a 12 year old girl is 120 pounds.
the ideal weight for a 9 year old girl whose 53 inches would range anywhere from 55-80 pounds because 53 inches is only about 4'3.