Mid-Parental Target Height Predictor
Calculates a child's target (genetic) adult height based on parental heights using the Tanner formula and modern regression methods.
Father's adult height in centimeters
Mother's adult height in centimeters
Sex of child for whom target height is calculated
Formula for target height calculation
⚠️ Warnings & Contraindications
- Tanner formula may underestimate height in children of very short parents (regression to mean)
- Add 1 cm for every 5 cm MPH below population mean; subtract 1 cm for every 5 cm above
- Parental heights should ideally be measured, not self-reported
- Target height is the same for all children of a given couple; individual predictions vary
- Secular trends may not be accounted for in older formulas
ℹ️ Clinical Notes
The Luo et al. method (1998) is more accurate than Tanner for extreme parental heights. The 95% predicted interval is approximately +/- 8.5 cm (Tanner) or +/- 10 cm (Luo).
References
- How accurate is Tanner's formula in estimating target height? - Frontiers in Endocrinology (2024)
- Target Height as Predicted by Parental Heights - Pediatric Research (1998)
- Accurate Prediction of Children's Target Height from Their Mid-Parental Height - PMC (2024)
Medical Disclaimer
This calculator is provided for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or calculated using this tool.
The authors and publishers of this calculator make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability of the information, products, services, or related graphics contained within this tool for any purpose.