Bone Age Calculator
The Bone Age Calculator estimates Predicted Adult Height based on gender, chronological age, bone age from X-ray, and current height. This tool helps parents and pediatricians assess growth potential and skeletal maturity. Whether you are tracking developmental milestones, evaluating growth delays, or planning for future medical needs, this calculator provides reliable projections. Gain peace of mind by understanding your child's growth trajectory today.
How Predicted Adult Height Is Calculated
Predicted Adult Height represents the expected final stature of a child once growth plates fuse. This metric relies on the K-factor calculation method, which adjusts current height based on skeletal maturity rather than just chronological years.
First, the bone age from an X-ray is compared to the child's chronological age to find the correct growth coefficient. Next, this coefficient is applied to the current height to project the final result. This process accounts for whether a child is biologically ahead of or behind their peers. While statistically accurate for large groups, individual results can vary based on genetics and health.
What Your Predicted Adult Height Means
The result tells you the estimated final height based on current bone development. It helps you visualize the endpoint of your child’s physical growth journey and identify potential developmental issues early.
High Growth Potential
If the calculation shows remaining growth greater than 4 inches, the child has likely not yet reached peak height velocity or puberty is delayed. This scenario often allows more time for nutritional interventions to maximize growth.
Average Trajectory
Remaining growth between 1 and 4 inches suggests a standard progression toward adulthood, typically seen in late pubertal stages. This aligns with standard growth chart percentiles.
Low Potential
Predictions within 1 inch of current height suggest that growth plates are fusing and vertical growth is nearly complete.
Important Note
Pay attention to the "Bone Age Interpretation" alert if the bone age differs significantly from chronological age, as this indicates advanced or delayed development.
This tool is for informational purposes only and is not medical advice. Always consult a qualified healthcare provider to interpret bone age X-rays and diagnose potential growth disorders. Do not make medical decisions based solely on these results.
For the best accuracy, measure height regularly and compare it against the prediction every few months.