There is no right weight for a 5 foot 16 year old girl. If the girl is physically active and into sports, she should weigh a bit more than one who sits around a lot. The question is that if she reaches on her right side underneath her last rib, can she pinch more than an inch of fat? The other question is does she pinch less than 1/2 inch of fat? Research at the German concentration camps in World War 2 discovered that people needed 5% fat to avoid death. Everyone needs some fat. No one needs too much fat.
5kg
120lbs
125-135lbs
90 pounds
About 80 pounds
65-80 pounds
45-55 kilos
80
Go to this website and enter your height and weight. a healthy weight should be a BMI of 19-25
Between 8 to 10 stone if you have to ball park it
With the information given that is certainly over weight.
it is healthy