How much should a 12 year old girl weigh if shes 5ft?

There is no one-size-fits-all answer to this question, as the ideal weight for a 12-year-old girl will vary depending on her individual height, body type, and activity level. However, a good general guideline is that a 12-year-old girl who is 5ft tall should weigh between 75 and 100 pounds. If you are concerned about your daughter's weight, it is best to talk to her doctor.