well that depends if you are 4'9" yes that would be over weight but if your 5'2" then no that would be healthy weight you can calculate your bmi at the link below, and remember if your a very athletic person your bmi may be a little higher then the average.
http://www.nhlbisupport.com/bmi/
Somewhere around 80 to the max of 115lbs
About 27%
well a 13 year old should not have more than 45% body fat i hope this helps if not sorry
The average body fat percentage a 13-year-old should have depends on their gender and height. It is usually around 25 percent.
it depends on how much muscle you have vs. how much fat you have but either way 180 is pretty big for a 13 year old. im 13 and i weight 121 but im all muscle
Take your weight and subtract 1000 lbs.
30-75
I asked it
not that much to me just don't worry about it you are just 13
30-75
yes
Not really. 112kg is really fat.