Child Height Predictor Calculator
Estimate The Adult Height Of Your Kids Baby Toddler Or Teen
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Description:
Note, this calculator or tool provides an estimate of how tall a child will be as an adult. It might not be 100% accurate for all cases. Height depends on many factors such as genetics, nutrition, environment and health. A doctor or pediatrician should be consulted if you believe your child is too short or tall.
This app estimates or predicts the future adult height of a child, toddler, baby or teen based on two methods. The method selected depends on age. For children below the age of four, the calculator uses the MidParent rule. For children above the age of four, the predictions are based on the KhamisRoche Method. In addition, the calculator estimates the length the child has left to grow.
The MidParent Rule is a simple formula to calculate adult height. It is based solely on the height of the parents and the child's gender. The height of the opposite gender parent is adjusted or multiplied by a factor. For fathers, the factor is 12/13. For mothers, the factor is 12/13. The adjusted factor is averaged with the other nonadjusted parent to solve the projected adult height.
The KhamisRoche method is valid for children above the age of four. It uses age, gender, child height and weight, mother height and father height. It uses a table of scaling factors and equations based on age for the prediction. It is considered an accurate predictor. The BoneAge method is the only procedure which is more accurate than the KhamisRoche Method. However, the BoneAge method requires an xray. For more information, see the reference.
Calculation Instructions:
 Select Units

 ft in lb  Standard units for foot, inch and US pound.
 cm kg  Metric units for centimeter and kilogram
 Select Gender  Choose male for boys and female for girls.
 Child's Birthday  Enter the date your son or daughter was born. Note, this is used to determine which method is used for calculations.
 Child's Height  The current measured height of the child. Note, this is only used to determine the additional growth of the child when using the MidParent Rule.
 Child's Weight  The current weight of the child. Note, this is not used when using the MidParental Rule.
 Mother's Height  The current height of the mother.
 Father's Height  The current height of the father.
Outputs:
 Predicted Height  The estimated height when the child reaches adulthood or full height.
 Additional Growth  The length the child has remaining to grow.
 Current Age  The age of the child in years.
 Method  The method used for prediction (MidParent Rule or KhamisRoche Method).
 Graph Plot  Shows the child's current height and additional growth and the height of the parents.
Reference:
 Gray, Horace. "Prediction of Adult Stature". Child Development Volume 19 Number 3. 3 September 1948. Society for Research in Child Development.
 Khamis, Harry J and Roche, Alex F. "Predicting Adult Stature Without Using Skeletal Age: The KhamisRoche Method". Pediatrics. October 1994. American Academy of Pediatrics.
Child Height Predictor:
CDC Recommended Growth Charts:
The United States Center for Disease Control (CDC) recommends using the World Health Organization (WHO) charts for the first two year of life (0 to 2 years). After two years, it is recommended to return to the CDC charts.
CDC Growth Charts:
WHO Growth Charts:
Chinese Growth Charts:
Preterm Infant Growth Charts:
Disclaimer:
Use this calculator at your own risk. This calculator may or may not be accurate or reliable. By using this calculator you acknowledge any reliance on this calculator shall be at your sole risk.
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