Due Date Calculator

Calculate your estimated delivery date and see your pregnancy journey milestones.

Estimated Due Date

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-- days to go!

Your Progress 0%
Week 1 1st Trimester

Important Milestones

Planning for your big day?

Enter your dates to generate a personalized pregnancy timeline and discover when your baby is expected to arrive.

Online Pregnancy Due Date Calculator – Plan Your Delivery

Welcoming a new baby into the world requires significant planning, from setting up a nursery to scheduling medical checkups. Knowing exactly when your little one is likely to arrive is the vital first step. Our free Due Date Calculator provides you with an instant, medically-vetted estimation of your delivery timeline.

By inputting either the first day of your last menstrual period (LMP) or your exact conception date, the tool generates a robust calendar mapping out your trimesters, crucial medical scan phases, and your final estimated delivery date (EDD).

Pregnancy Due Date Calculator Online Tool
Features of Due Date Calculator Tool

Why Use Our Pregnancy Calculator?

  • Dual Calculation Methods – Compute your timeline using the standard LMP method (Naegele's rule) or direct conception dating.
  • Visual Trimester Tracking – Get a live progress bar showing exactly what percentage of the pregnancy is complete today.
  • Detailed Weekly Milestones – View a personalized week-by-week timeline of your baby's biological development.
  • Instantly Generated – No tedious sign-ups or email requirements. Your data is strictly private.

How to Calculate Your Due Date

  1. Use the dropdown menu to select your tracking metric: Last Period (LMP) or Conception Date.
  2. Click the date input box to open the calendar module, then select your foundational starting date.
  3. Click Calculate Due Date.
  4. Review your dashboard! Note the large bold EDD (Estimated Due Date) at the top, check your "days remaining" countdown, and explore the weekly timeline generated below.
Steps to Calculate Due Date

Frequently Asked Questions

Answers to medical dating guidelines.

It's strictly an estimate! Statistically, only about 4-5% of babies are born precisely on their predicted due dates. The standard window for a "full-term" delivery safely spans anywhere from Week 37 to Week 42 of pregnancy.

Determining the precise day of conception is notoriously difficult for most couples, as sperm can survive in the reproductive tract for several days. However, the first day of a Last Menstrual Period is a highly memorable, concrete date. It serves as a more reliable medical baseline for calculating the generic 280-day gestational cycle.

It might! Early dating ultrasounds (usually performed in the first trimester) physically measure the length of the fetus. If the fetal measurement strongly disagrees with the date projected by your LMP, your doctor may officially adjust your due date based on the ultrasound.