Disclaimer
This is an independent implementation of the WHO fetal growth reference calculation engine. It is NOT an official WHO application and is not produced, endorsed or reviewed by the World Health Organization.
No patient-identifying information is entered into this website. Measurements are kept in the current browser tab only and are not stored in a server-side database, Google Sheets, Google Drive or browser persistent storage.
Twin pregnancies should be interpreted using an appropriate validated twin reference standard, according to local protocol.
The chart does not provide diagnosis, treatment recommendations or invented clinical thresholds. Clinical interpretation remains the responsibility of the treating clinician.
Intended use
Fetal Growth Chart is a clinical-support and educational tool for healthcare professionals. It plots measurements entered by the user against a published reference. It does not replace professional clinical assessment, the clinician's own judgement, or local and national guidelines.
Accuracy of entered data
The output depends on the data entered. The user is responsible for the correct gestational age, units and measurements. The tool checks for some common entry errors, but it cannot detect every mistake.
Educational content
The guides on this website are general educational information for healthcare professionals. They summarise published references and are not a substitute for the original guidelines. Clinical practice should follow the guidelines adopted by your institution.
No warranty
The website is provided "as is", without any warranty of accuracy, availability or fitness for a particular purpose. The developer is not liable for decisions made on the basis of the tool.