Acoording to optimal weight suggestions :
5'2" Height (female) = 108 to 141 Pounds (the average would be 125 lb.)
(see the related link for a chart)
The Ideal weight for a 5 foot 2 inch woman is around 115 pounds, (8 stone 3) but anything between 101-137 is healthy. It also depends on your age and all women have different body shapes so it isn't very accurate. Also if you are very muscular it isn't accurate as muscle weighs more than fat.
152 pounds
125 to 140
Nothing--in space
Roughly 140 - 160 pounds.
150
62kg
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
125 lbs
about 75-86 pounds
150-165lbs
117 - 143 lbs.