How much should a 13 girl weigh if she is

There is no one answer to this question, as the ideal weight for a 13-year-old girl can vary depending on a number of factors, including height, genetics, and activity level. However, a general guideline is that a 13-year-old girl should weigh between 75 and 140 pounds. It's important to remember that this is just a general guideline, and that some girls may be naturally thinner or heavier than this range. If you have concerns about your daughter's weight, talk to her doctor.