Mid Parental Height Calculator
Predict your child's target adult height using established pediatric growth models. Enter the heights of both parents to get a personalized growth range.
Normal Target Height Range (± 8.5 cm):
0 cm - 0 cm (0' 0" - 0' 0")Mid Parental Height Calculator – Your Growth Predictor
Our advanced Mid Parental Height Calculator offers parents a highly reliable, medically standard method for predicting a child's target adult height using the genetics of both biological parents. Understanding your child’s future height can be incredibly valuable for planning pediatric care, setting expectations, and monitoring growth patterns over time.
How the Prediction Formula Works
The calculation is based on well-established pediatric growth models created by Dr. J.M. Tanner. The formula accounts for the average height difference between adult men and women (which is roughly 13 centimeters or 5 inches).
- For Boys: Add 13 cm to the Mother's height, add it to the Father's height, and divide by 2.
- For Girls: Subtract 13 cm from the Father's height, add it to the Mother's height, and divide by 2.
Understanding the Target Range
Genetics is not an exact science. While the Mid Parental Height gives a solid baseline, children within the same family can end up at different heights. This is why our calculator provides a Target Height Range of ±8.5 cm (about ±3.5 inches). If a child's projected adult height falls within this range, their growth is generally considered normal and healthy.
Frequently Asked Questions (FAQs)
1. What is mid parental height?
Mid parental height is a predictive measurement used by pediatricians to estimate a child's potential genetic adult height. It provides a target height along with a realistic upper and lower boundary range.
2. How accurate is this calculator?
While the calculator provides a highly reliable genetic estimate, final adult height is influenced by environmental factors such as childhood nutrition, sleep quality, and overall health and physical activity during puberty. Treat this tool as a strong guide rather than an absolute guarantee.
3. Why do boys and girls have different formulas?
On average, adult males are about 13 centimeters (or 5 inches) taller than adult females. The formula adjusts the parent's height to match the gender of the child before finding the average.
1. Tanner JM, Goldstein H, Whitehouse RH. Standards for children's height at ages 2–9 years allowing for heights of parents. Arch Dis Child. 1970.
2. World Health Organization (WHO). Child Growth Standards.