Guide
Bayley-Pinneau height calculator
How clinicians look up predicted adult height from bone age with sex, growth tempo, and current height in the Height Predictor iOS app.
What you enter, what you get back
You choose boy or girl, pick advanced, average, or delayed growth tempo, enter current height and bone age, then look up predicted adult height from Bayley-Pinneau tables.
That is the whole job. No patient chart sync. No X-ray scoring inside the app. A fast table lookup when you already have a bone age from clinical practice.
A concrete clinic moment
Say radiology returned a bone age of 10.5 years for a boy who is 55.5 inches today, average tempo. You want the Bayley-Pinneau adult height before you talk through growth with the family.
Open Height Predictor when it ships, enter the four inputs, read the result, document in your usual note. Decide with the rest of the visit in mind.
Who this is for (and who it is not)
Built for pediatric clinicians and trainees. Parents should not use it to guess a child's adult height at home. Bone age scoring and growth counseling stay clinical work.
The app is a reference aid for table lookup. It does not replace published methods, measurement quality, or your judgment.
App vs this page
This page explains the calculator workflow. The tool is the Height Predictor iOS app on the product page (coming soon). For bone-age context and limits, use the sibling guide in the pediatric medicine hub.
Frequently asked questions
Is there a web calculator on this site?
Not today. The working tool will be the Height Predictor iOS app. This page describes the lookup and links to the product waitlist.
Which method do the numbers follow?
Bayley-Pinneau tables for predicted adult height from skeletal age, with separate paths for advanced, average, and delayed tempo.
Does the app read the hand X-ray?
No. You enter a bone age that was already scored. The app looks up predicted adult height from that value plus current height and tempo.
Does it work offline?
Yes. The tables ship on device, so the core lookup does not need a network connection.
Built around Height Predictor in the Pediatric medicine tools hub.