If you've calculated your BMI you should have seen the recommended span as well, so I don't know if this is a serious question. 11.5 is a dangerously low BMI and you could well stand to gain 40 pounds or so.
I'm 4'9 and I weigh 124 lbs I think I am very very very fat
With the information given that is certainly over weight.
Personal examples from several Answerers:1. Depending on your body type I'm 12 and 5'1 and weight 892. When I was that age and height, I weighed 124, and was a women's size 8. I wasn't skinny, but not fat either. Looking around at my classmates, I was average. And strong.
No. 100 is fat for a 12 year old girl. 140 is chewbacca mode.
A pound of fat looks like a pound of butter.
no. if anyone tells you that they have a fat head.
15-23% body fat
no
yes!!
About 453.6 grams per pound.
THere are 3500 calories in a pound of fat
1400 to 2600 grams of fat should a 10 year old girl should have on each day.