BMI of a 13 year old?
The average bmi of a 13 year old depends on your height and weight . http://www.nhlbisupport.com/bmi/
According to BMI settings for a 13 year-old female, it is not a healthy weight, but is overweight. Though it does depend on body build and other factors, a regular BMI test shows that it is overweight. Yes, it is in the acceptable range for healthy weight (which depends on body build, muscle mass, etc.).
Yes it is a totally normal weight. That means that you have a BMI of 20.8. Any BMI between 18.5 and 24.9 is considered a normal weight. If your BMI is between 25 and 29.9 it is considered overweight. A BMI 30 or above is considered obesity. And a BMI smaller than 18.5 is considered underweight, therefore your weight is perfect.
This depends on your BMI ( Body Mass Index) Take your weight in kilograms and divide them by length x length in centimeter For example: your weight is 50 kilograms and you are 160 centimeters tall. You BMI is 50/160=0.3125 ans/160=0.00195 Your BMI would be 19.5, which is perfect A BMI for a 13 year old is good when its between 17.5 and about 24.