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Questions about predictions, growth-plate science, or the tools? We're here to help.
Email SupportFrequently Asked Questions
How accurate is the Height Predictor?
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We use the Khamis-Roche method — the same approach pediatric endocrinologists use to estimate adult height without bone-age X-rays. Accuracy is typically within ±2 inches for ~80% of people. It is an estimate, not a guarantee. Individual results vary based on nutrition, sleep, puberty timing, and genetics.
Why do you need my parents' heights?
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Midparental height (the average of mom and dad) is one of the strongest predictors of adult height — it captures the genetic component, which accounts for ~60-80% of final height. Without it, predictions become much less accurate. If you don't know exact heights, your best estimate is fine.
Do you store my data?
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No. All Heightmog tools run client-side in your browser. We don't store the stats you enter, we don't require an email to use the tools, and we don't track individual results. The only data we collect is standard anonymized analytics (page views) via Google Analytics.
Can I really still grow at 18 / 20 / 22?
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Most males finish growing between 16-21, most females between 14-19. Once your growth plates fuse, the only proven way to add bone length is limb-lengthening surgery (a serious medical procedure with months of recovery). What you CAN still do at any age: improve posture (worth 0.5-1 inch of perceived height), maintain proper nutrition, and protect your spinal health.
Is this medical advice?
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No. Heightmog provides educational predictions based on widely-used methods (Khamis-Roche, CDC growth charts, Tanner staging). If you have concerns about your or your child's growth — short stature, delayed puberty, growth velocity issues — talk to a pediatrician or pediatric endocrinologist.
Something isn't working — how do I report a bug?
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Email us at support@metellusproductions.com with a description of the issue, your browser/device, and a screenshot if possible. We respond within 1-3 business days.
Still need help?
We read every email. Most replies within 1-3 business days.
support@metellusproductions.com