Baby Due Date Calculator Online – Estimate Your Pregnancy Due Date
Advanced Baby Due Date Calculator
Spluxly’s free online Baby Due Date Calculator helps expectant parents predict their baby’s estimated due date (EDD) quickly and accurately. Simply enter your Last Menstrual Period (LMP) or conception date and the calculator instantly computes your due date, current gestational age, and all key pregnancy milestones — including the end of the first trimester at 13 weeks and the second trimester at 27 weeks. It also generates a detailed milestone table and a color-coded pregnancy timeline chart for a clear visual overview of your entire pregnancy journey. With support for custom cycle lengths, this tool adapts to your unique cycle for more personalized and precise results. Whether you’re a first-time parent or planning ahead, get all the answers you need in seconds — completely free, no sign-up required.
How to Use the Baby Due Date Calculator Online
Estimating your baby’s due date is simple and takes just seconds. Follow these easy steps:
- Select Calculation Method – Choose Last Menstrual Period (LMP) or Conception Date
- Enter the Date – Input your LMP or conception date (e.g., 2026-05-01)
- Enter Cycle Length (LMP only) – Input your average cycle duration in days (e.g., 28; range 21–35)
- Click Calculate – Instantly view your estimated due date, current gestational age, trimester milestones, a key dates table, and a visual pregnancy timeline chart
Why Use Spluxly’s Baby Due Date Calculator?
- Two Calculation Methods – Supports both Last Menstrual Period (LMP) and Conception Date inputs for flexible and accurate due date estimation
- Gestational Age Tracking – Instantly shows your current gestational age in weeks and days from the moment you calculate
- Pregnancy Milestone Table – Clearly lists all key dates including trimester endings and your estimated due date in one easy-to-read table
- Color-Coded Timeline Chart – Visually maps your full pregnancy journey with trimesters in pink, due date in blue, and current progress in green
- Custom Cycle Length Support – Adjusts ovulation timing based on your personal cycle length for more accurate LMP-based results
- 100% Free & Instant – No registration, no fees — complete pregnancy planning insights delivered in seconds