Can you tell me a healthy weight for a 5'5 12 year old girl?

Yearly Check-ups. "Healthy weight...5'5 12 yr old girl?" Growth in children and adolescents is assessed using standardized charts which take into account height & weight. Another tool called the BMI (body mass index) is used to assess body fat levels. Your daughter is tall (height is 95th%). An appropriate weight range as it relates to BMI is 115-125 lbs. Get yearly check-ups to ensure normal growth and puberty.