1. What is the Height Prediction Calculator?

The height prediction calculator estimates a child's adult height based on the heights of their parents. This method is commonly known as the "mid-parental height method" and provides a rough estimate of genetic height potential.

2. How Does the Calculator Work?

The calculator uses the mid-parental height formula:

Where:

• Mother's Height — Height of the biological mother in cm
• Father's Height — Height of the biological father in cm
• Adjustment — +13 cm for boys, -13 cm for girls

Explanation: The formula accounts for the average height difference between genders by adding or subtracting 13 cm (approximately 5 inches) before averaging.

3. Accuracy of Height Prediction

Details: This method predicts height within about 10 cm (4 inches) for 95% of children. Actual height can be affected by nutrition, health, and other genetic factors.

4. Using the Calculator

Tips: Enter parent heights in centimeters (or convert from inches: 1 inch = 2.54 cm). For most accurate results, use the parents' adult heights.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this prediction?
A: The prediction is accurate to within ±10 cm (4 inches) for most children, with 68% falling within ±5 cm (2 inches).

Q2: Can this predict height for adopted children?
A: No, this method requires biological parents' heights to estimate genetic potential.

Q3: What if my child is already a teenager?
A: For children over 2 years old, bone age X-rays provide more accurate predictions.

Q4: Why is there a gender adjustment?
A: On average, men are about 13 cm taller than women due to biological differences.

Q5: Can nutrition affect the actual height?
A: Yes, proper nutrition during growth years can help reach genetic potential, while malnutrition may limit growth.