Depends what you mean by how much. 11 pounds is 38500 calories, meaning you have to burn that many more calories than you consume. You can look at or try to carry around 11 pounds of butter (it comes in 1 pound blocks) to see what it may look or feel like. Remember when you lose weight, the fat comes off all over not just in one spot.
About 25-30 pounds
If you are fairly strong and weigh from 100-110 pounds your fine and don't lose weight, if you weigh more, lose weight. If you are fairly weak and weigh from 70-90 pounds your fine don't lose weight, if you weight less lose weight. If you weight 90-100 pounds weak or strong your PERFECT don't EVER think your over weight. For an 11 year old girl who hasn't had puberty then you will soon and when you do then take my advice
eat alot
An illness would be the only way for a kid to lose that much weight.
HECK ya u should!!! ur a fattie if you weigh 138 pounds!
80 pounds
11 lbs. (pounds)
An 11-year old boy who is 5 feet and 6 inches in height and 200 pounds in weight exceed the standard norms of height and weight. The ideal weight of an 11-year old Caucasian boy who has a height of 5 feet and 6 inches is only 77 pounds. For a Caucasian girl, the weight should be 79 pounds.
YOU DON'T NEED TO LOSE WEIGHT! I'm 11 and I am 117 pounds and that's normal and I'm still skinny! Don't worry about it!
72 to 95 pounds
7 pounds and 11 ounces.
That's a difference of 24 pounds. 11 stone 5 is equal to 159 pounds, and 9 stone 9 is 135.