Child Adult Height Predictor
Health & FitnessPredict child adult height using the clinically validated Mid-Parental Target Height (Khamis-Roche method) adjusted for biological sex and parental heights.
Mid-parental method ± 8.5 cm expected standard deviation range (170.5 – 187.5 cm)
About this calculator
Parents often wonder how tall their child will grow to be as an adult. Genetics accounts for approximately 60% to 80% of an individual's final adult stature, with nutrition and overall health contributing the remainder.
This calculator applies the pediatric Mid-Parental Target Height method (also known as the Tanner method), adjusting maternal and paternal heights to project expected adult stature within a standard ±2 inch (±5 cm) confidence interval.
How It Works & Formula
Boy Expected Height = [(Father's Height + Mother's Height + 5 inches / 13 cm) / 2]. Girl Expected Height = [(Father's Height - 5 inches / 13 cm + Mother's Height) / 2].
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