Since you didn't tell us how tall you are, there is no way for us to know if you are overweight or not.
123 pounds for 5'4 is pretty much a normal weight.
No, It is NOT 80-130 lbs. is good it also depends on your Height and your Weight.
If you are 123 pounds 5 foot 1 and 12 years old you are not considered overweight or fat, actually this is the average weight for a 12 years old.
123 pounds = 8st 11lb
123 pounds = 8.785 stone.
123 kilograms is equal to 271.17 pounds.
Probably about 125 pounds overweight.
One pound is 0.455 kilos, you do the math.
No, you are not overweight
1 kg is equal to 2.2 pounds. So if you divide 123 pounds by 2.2 then you get the equivalent "weight" in kilograms.
If you are average height, I would say no, 70 pounds is definitely not overweight.
Yes, you would be overweight if you weigh 1000 pounds.