This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
Single-Point Growth Calculator
Calculate a measured value against a selectable reference curve (all datasets)
About this calculator
The universal calculator: select dataset, measure, sex, age or length and measured value – output z-score, percentiles, median and growth curve. Covers all references of the growth engine (CDC, WHO, Fenton, Olsen, Zemel, Brooks, Cappa, Addo, Abdel-Rahman, Mramba, Kromeyer-Hauschild, KiGGS).
For datasets with an age axis, if a gestational age is given, corrected age applies (up to 24 months); for preterm growth charts, postmenstrual age. All datasets and their sources: Reference datasets.
Frequently asked questions
Which references does the universal calculator know?
All datasets of the growth engine: CDC 2000 and Extended BMI, WHO 2006 and 2007, Fenton 2003 and 2013, Olsen 2010 and 2015, Zemel 2015 (Down syndrome), Brooks 2011 (cerebral palsy by GMFCS), Cappa 2024 (Noonan), Addo, Abdel-Rahman, Mramba, as well as Kromeyer-Hauschild and KiGGS.
How is the calculation done between the support points?
The L, M and S parameters are linearly interpolated between the published support points; outside the reference range the calculator deliberately gives no result.
Is there an interface?
Yes, a JSON endpoint: /api/growth/?datensatz=who2006&masse=weight&sex=m&x=180&wert=7.9 returns the z-score, percentile and LMS parameters. x is the axis value in the unit of the data set – for WHO 2006 the age in days (180 days ≈ 6 months), for other data sets months, weeks or cm. The list of all data sets with their axis unit is at /api/datensaetze/.