Height prediction calculator
Published On: 25/02/2026
Height Prediction Calculator
Estimate a child’s adult height using common prediction methods: Mid-Parental Height and Khamis-Roche (no X-ray) (approximate).
Inputs explained:
• Child sex: male or female (used by the formulas).
• Child age: in years (Khamis-Roche is typically used around school age).
• Child height & weight: current measurements.
• Mother & father height: used for both methods.
Important: These are estimates. Genetics, puberty timing, nutrition, and health can change final height.
• Child sex: male or female (used by the formulas).
• Child age: in years (Khamis-Roche is typically used around school age).
• Child height & weight: current measurements.
• Mother & father height: used for both methods.
Important: These are estimates. Genetics, puberty timing, nutrition, and health can change final height.
Disclaimer: This calculator provides an educational estimate only and is not medical advice. If you’re concerned about growth or puberty timing, talk to a pediatrician/endocrinologist.
Height Prediction Calculator — Description
The Height Prediction Calculator estimates a child’s adult height using the Mid-Parental Height method and an educational approximation of the Khamis-Roche approach (no X-ray). Enter the child’s age, current height and weight, and both parents’ heights. The calculator returns an estimated adult height and an optional range.
Because growth depends on genetics, puberty timing, health, and nutrition, results are approximate and should be used for informational purposes only.