Height Calculator
Estimate adult height based on parental heights using the mid-parental height formula recommended by pediatric endocrinologists.
Predicted Height
Mid-parent height
172.5 cm
(67.9 in)
Predicted adult height
189.0 cm
(74.4 in)
Expected range
179.0 – 199.0 cm
(70.5 – 78.4 in)
How to Use This Calculator
Measure parent heights accurately
Use standing height without shoes. Precision affects the prediction.
Select child's sex
Boys and girls have different adjustment factors.
Interpret the range
Expect about ±10 cm (±4 in) around the predicted value for most children.
Formula
Mid-parental height (cm) = (father height + mother height) ÷ 2.
Based on standard pediatric endocrinology growth prediction methods (mid-parental height / Tanner method).
Frequently Asked Questions
How accurate is this method?
Most children reach adult heights within ±10 cm of the prediction. Extreme deviations warrant medical evaluation.
Does early puberty affect final height?
Yes. Early puberty shortens growth window. Pediatric endocrinologists can evaluate if treatment is needed.
Should I be concerned if my child is short now?
Consistent growth velocity is more important than a single measurement. Discuss growth charts with your pediatrician.
Can nutrition increase height beyond genetics?
Good nutrition helps children reach their genetic potential but won't exceed it significantly.
Is there a separate formula for adopted children?
Without parental heights, use population percentiles and pediatric growth charts for guidance.