Is 5'7 too tall for a 17 year old female? And what should the average weight be for that height?

Just right . 5 ft 7 is in the 80% percentile for a woman in the U.S. So you are taller than 80% of women. Weight in the range of 125 to 160 is about right for your height. This puts you into a normal BMI range of 20 to 25. .
Within normal range. 67" is within normal range of height for your age. Ideal weight for 67" should be 135-150 lbs. Thanks for trusting HealthTap!