Children's Health and Wellness

Due Date Calculator

It is important to estimate your due date so you and your healthcare provider can schedule proper prenatal care and plan for your baby's birth. Your healthcare provider uses a method similar to this calculator to give you your due date.

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What was the date of the first day of your last menstrual period? (MM/DD/YYYY)

This calculator is not intended to replace the evaluation of a healthcare professional.

Print Source: Prenatal Assessment of Gestational Age, Up to Date
Online Source: Due date calculator, March of Dimes
Author: Lambert, J.G. M.D.
Online Editor: Sinovic, Dianna
Online Medical Reviewer: Kanipe, Jennifer, RN, BSN
Online Medical Reviewer: Sacks, Daniel, MD, FACOG
Date Last Reviewed: 8/16/2015