Boy estimate
(father + mother + 13cm) / 2
Child Height Predictor
Predict your child's adult height based on parents' heights using the mid-parent height formula.
Target Height Predictor
Genetic Growth Analytics
Estimate your child's target height based on parental data (Tanner Formula).
Target Height
174.0
cmMargin of error is ±5cm. Nutrition and exercise decide 20-30% of actual height.
Predicted height starts with parents' heights, but growth is more complex
The mid-parent height formula is a simple way to estimate a child's adult height range from parental heights. Growth tempo, puberty timing, nutrition, sleep, illness, and bone age can all affect the real outcome.
Prediction concepts
Girl estimate
(father + mother - 13cm) / 2
Expected range
Treat the result as a range because individual growth varies.
How to use
- Enter both parents' heights in the same unit.
- Select the child's sex to calculate the mid-parent height estimate.
- Interpret the result with growth charts, growth speed, and clinical history.
Frequently asked questions
Is the result the child's final adult height?
No. It is a genetic estimate, and actual adult height can change with health, puberty, nutrition, and environment.
When should I ask a doctor?
Consult a pediatrician if growth percentile drops sharply, height is far from peers, or puberty seems unusually early or late.
Is bone age more useful?
Bone age, growth charts, and a clinical exam can provide a more individualized assessment than a simple formula.
This page is general information, not medical advice. For delayed growth, early puberty, nutrition concerns, or height treatment, consult a pediatrician or doctor.