 [ Symptoms ] what is tthe normal ideal weight for a 16 month old girl i have one and she is 19lbs and 6 oz [ Disease ] there is not one normal or ideal weight for babies and young toddlers pediatricians track a child is growth using growth charts measuring weight height and head circumference this shows how your child grows over time and what percentile they are at comparison to other children so if you child is height for weight is 50 percentile they are average if they 80 percentile that means out of 100 kids there are 20 that are bigger and 80 that are smaller what matters most is not a child is weightheight percentile but that heshe is growing in a steady fashion a child may be at 20 percentile on the small side but if that is where heshe has been tracking since birth it is likely a good weight for the baby the same is true for higher percentiles but when growth goes off the steady growth either up or down that may be a sign of concern the world health organization growth charts are recommended for babies 0 24 months of age and can be found at <link> be sure to review growth with your pediatrician