Child Height Predictor

Estimate potential adult height based on parental height.

Select units, enter parental heights and child's gender.

Height prediction based on parental height is an estimate. Genetics, nutrition, and health play complex roles. Results typically have a margin of error (e.g., +/- 2 inches / 5 cm).

Estimating a Child's Adult Height

Parents are often curious about how tall their children might grow. While genetics play a major role, predicting adult height precisely is impossible. However, several methods provide reasonable estimates based primarily on the biological parents' heights.

How to Use

  1. Select Metric or Imperial units for height measurements.
  2. Select the Child's biological Gender.
  3. Enter the Mother's height in the chosen units.
  4. Enter the Father's height in the chosen units.
  5. Click "Predict Adult Height".

The calculator will display an estimated adult height range for the child based on common prediction formulas.

Common Prediction Methods

  • Mid-Parental Height Method (Simplified):** This is the most common simple method.
    • For Boys: `((Mother's Height + 5 inches/13 cm) + Father's Height) / 2`
    • For Girls: `((Father's Height - 5 inches/13 cm) + Mother's Height) / 2`
    • *(The calculator converts units before applying the formula)*
    • This method typically has a margin of error of about +/- 2-4 inches (5-10 cm).
  • Other Methods (More Complex):** Some methods incorporate the child's current age and height (bone age assessment using X-rays is the most accurate clinical method, but not calculable here).

Factors Influencing Height

While genetics (parental height) is the primary determinant, other factors influence final adult height:

  • Nutrition during childhood and adolescence.
  • Overall health and presence of chronic illnesses.
  • Hormonal factors.
  • Timing of puberty.

Use this calculator as a fun estimate, but understand that it provides a potential range, not a guaranteed outcome.