What should an 18 year old girl weigh who is 5ft 11?

The average weight for an 18-year-old girl who is 5ft 11 is between 125 and 140 pounds. However, this can vary depending on a number of factors, such as body composition, activity level, and genetics. It is important to note that weight is not always a good indicator of health. A person can be overweight or underweight and still be healthy, depending on their individual circumstances.