Child Height Predictor
Predict your child's adult height based on mother and father's height using the mid-parental height method.
How It Works
Uses the mid-parental height formula: for boys, (mother's height + father's height + 13 cm) / 2. For girls, (mother's height + father's height - 13 cm) / 2. The 13 cm represents the average height difference between adult men and women. Result has a margin of +/- 10 cm.
Frequently Asked Questions
How accurate is the mid-parental height formula?
The mid-parental height method predicts within +/- 10 cm (about 4 inches) in most cases. Genetics accounts for about 60-80% of height, with nutrition, health, and environment making up the rest. It is a useful estimate, not an exact prediction.
What is the average height in Australia?
The average adult height in Australia is approximately 175.6 cm (5'9") for men and 161.8 cm (5'4") for women, according to the ABS National Health Survey.
At what age do children stop growing?
Girls typically reach full adult height by age 14-16. Boys continue growing until age 16-18, sometimes up to 21. Growth plates close at different ages for different bones.
Does nutrition affect height?
Yes. Adequate nutrition, especially protein, calcium, vitamin D, and zinc during childhood and adolescence is important for reaching genetic height potential. Malnutrition or chronic illness during growth years can result in shorter adult height.
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