My daughter is 11 years old, 4 feet 8 inches tall and weighs 105 pounds. is this a healthy weight for her?

Better at....: In the 85 lb range would be better.

BMI: Use a BMI calculator to know. SEE: https://www.nhlbi.nih.gov/health/educational/lose_wt/BMI/bmicalc.htm. BMI Categories: Underweight = <18.5 * Normal weight = 18.5–24.9 * Overweight = 25–29.9 * Obesity = BMI of 30 or greater. By checking your BMI you can get an idea of whether she is in a healthy range.