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Height Predictor
Predicted adult height from bone age.
Bone Age Height Predictor on the App Store: a Bayley-Pinneau adult height lookup for clinicians with a scored bone age.
Platforms

Height Predictor is the Bayley-Pinneau table on your phone. It ships on the App Store as Bone Age Height Predictor, an iOS clinical reference tool for looking up predicted adult height from bone age. Choose boy or girl, pick advanced, average, or delayed skeletal tempo, enter current height in inches and bone age in years, then read the table value on device. Tables ship with the app, so the core calculation works offline. Built for pediatric clinicians and trainees who already have a scored bone age, not for consumer guessing at home. Requires iOS or iPadOS 18.6 or later. Available now on the App Store.
Sex-specific advanced, average, and delayed tempo tables for predicted adult height from bone age.
Enter current height and bone age after choosing sex and growth tempo, then look up the result.
Digitized tables live on the device. No account and no network required for the core lookup.
Assumes a scored bone age from clinical practice. Not a consumer toy or parent height guessing app.
Predicted adult height from a scored bone age, without the paper table.
Get a predicted adult height from sex, growth tempo, current height, and bone age without flipping paper tables mid-visit.
Advanced, average, and delayed tables ship with the app so the core lookup works offline in clinic.
The tool assumes a scored bone age. It is a reference aid for growth evaluation, not a parent guessing game.
Practical ways people use Height Predictor day to day.
Pediatric endocrinologists
When radiology already returned a bone age, look up predicted adult height before you leave the room.
Residents and fellows
Walk through sex, tempo, height, and bone age inputs so trainees see how Bayley-Pinneau tables are applied.
Pediatric clinicians
Run the lookup on device when Wi-Fi is poor or you do not want another browser tab open.
Visual previews for Height Predictor.






How a Bayley-Pinneau lookup is entered, who it is for, and what the app does not score from an X-ray.
Take a boy who measures 55.5 inches today, with radiology reporting a bone age of 10.5 years and an average maturation pattern. Sex picks the boys table. Tempo picks the average-tempo page of that table. Bone age picks the row. Current height is applied to that row to give predicted adult height. Height Predictor takes those four inputs and returns the table value on device. This page does not reprint the published Bayley-Pinneau tables.
Pediatric clinicians and trainees who need a Bayley-Pinneau predicted adult height from a scored bone age. It is not a consumer diagnostic app for parents.
Bayley-Pinneau tables digitized for boy and girl paths across advanced, average, and delayed growth tempo. The app looks up the nearest supported table entry for your inputs.
It is available now on the App Store for iOS. Open the product page for the download link.
No. You enter a bone age that was already assessed clinically. The app predicts adult height from that bone age plus current height and growth tempo.
Boys: 7 to 17 years for advanced tempo, 7 years through skeletal maturity for average, and 6 to 13 years for delayed. Girls: 7 to 17 years for advanced, 6 to 18 for average, and 6 to 17 for delayed. Inputs outside a table are matched to the nearest supported entry.
Current height is entered in inches and bone age in years, matching the digitized Bayley-Pinneau tables. There is no centimeter input in the current build.
It runs on iPhone and iPad with iOS or iPadOS 18.6 or later. Device-based volume licensing through Apple Business Manager is enabled for clinics and training programs.
Bone Age Height Predictor is the store listing name; Height Predictor is the short name used on this site. Same app, same developer.
No. Mid-parental target height comes from parental heights. Bayley-Pinneau predicted adult height comes from current height and a scored bone age with tempo-specific tables.
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