Gestational Age
Calculate current Gestational Age (GA) and accurate due dates based on advanced clinical parameters including early Ultrasound dating and Assisted Reproductive Technology (IVF).
Dating Method
Clinical Precision & Methodology
The Gestational Age Calculator utilizes advanced dating methods—specifically early ultrasound scans and IVF transfer dates—which provide significantly higher clinical accuracy than standard LMP-based rules.
Ultrasound Dating
Calculates current gestational age by projecting forward from a known, clinically measured ultrasound baseline (such as Crown-Rump Length). According to ACOG, a first-trimester scan is the most accurate dating method.
ART & IVF Protocols
Supports precise calculations for Assisted Reproductive Technology, utilizing exact day-3 cleavage or day-5 blastocyst transfer dates rather than relying on assumed follicular phases.
Thermal Receipt Export
Generates a high-resolution, perfectly scaled PNG image designed specifically for 80mm thermal printers, enabling instant clinical handouts.
IVF Calculation Logic
Assumes conception occurred 5 days prior to transfer.
Assumes conception occurred 3 days prior to transfer.