An 11 year old who is four foot 11 should be about 90 pounds. It might be less, or more depending on the child. Always remember that though your child might not have the exact same weight, it's not time to freak out!
Completely depends on the person.
A boy that is 4 foot 9 inch should weigh between 30 to 40 kilograms. This is the ideal weight but it varies in most cases.
100-115
152 pounds
125 lbs
117 - 143 lbs.
about 75-86 pounds
About 120-133 Pounds
150-165lbs
125 to 140
about 170 if muscular. but most people are not so 130? or 140?
well you should weigh at least 80 to 100 pounds