Around 70-80 pounds. If he is like 100 than you should put him on a diet off healthy fruit and no ice cream until at least 85 pounds. Also go on treadmill and a healthy meal is brown rice with some good source of protein such as broccoli or corn or avocado and remember always one serving!
85 lbs.
130 Pounds
35-37 lbs
the weight he should weigh is 105 pounds
Probably 120 will be the best weight for your height.
150 pounds
90 pounds
85 pounds
About 95-100 lb.
4 ' 0 , 30 kg.
120-140 pounds
70ish