Children’s Adult Height Prediction Calculator

This calculator estimates a child’s adult height based on the parents’ heights using a linear regression method. The prediction considers the average genetic contribution from both parents and adjusts for the typical height difference between males and females.

Formula

For Boys:

Predicted Adult Height=Father’s Height+Mother’s Height+13 cm2\text{Predicted Adult Height} = \frac{\text{Father’s Height} + \text{Mother’s Height} + 13\ \text{cm}}{2}Predicted Adult Height=2Father’s Height+Mother’s Height+13 cm​

For Girls:

Predicted Adult Height=Father’s Height+Mother’s Height−13 cm2\text{Predicted Adult Height} = \frac{\text{Father’s Height} + \text{Mother’s Height} – 13\ \text{cm}}{2}Predicted Adult Height=2Father’s Height+Mother’s Height−13 cm​

Note: 13 cm is approximately the average difference between adult male and female heights.

Instructions

1. Input the Parents’ Heights:
   • Measure the father’s and mother’s heights in centimeters (cm).
2. Determine the Child’s Gender:
   • The calculation adjusts based on whether the child is a boy or a girl.
3. Apply the Formula:
   • Use the appropriate formula based on the child’s gender.
4. Interpret the Result:
   • The output is an estimate of the child’s adult height in centimeters.

Example Calculation

Given:

• Father’s Height: 180 cm
• Mother’s Height: 165 cm
• Child’s Gender: Boy

Calculation:

Predicted Adult Height=180 cm+165 cm+13 cm2=358 cm2=179 cm\begin{align*} \text{Predicted Adult Height} &= \frac{180\ \text{cm} + 165\ \text{cm} + 13\ \text{cm}}{2} \\ &= \frac{358\ \text{cm}}{2} \\ &= 179\ \text{cm} \end{align*}Predicted Adult Height​=2180 cm+165 cm+13 cm​=2358 cm​=179 cm​

Result: The predicted adult height for the boy is 179 cm.