Gestational age (EDD vs LMP) is a pregnancy tool commonly applied in Obstetrics & Gynecology. Completed gestational age as of a reference date from estimated due date (EDD) calculated by Naegele (LMP + 280 days) and/or a separate clinical EDD (e.g. ultrasound). Shows dating discrepancy and GA difference. Inspired by Ped(z) gestational age; not affiliated with pedz.de. Use the interactive calculator for inputs, limitations, and primary references.

Not a substitute for clinical judgment. Verify critical values with primary literature, local protocols, and specialist input when appropriate.