Pregnancy Due Date Calculator
Your estimated due date (EDD) is about 40 weeks from the first day of your last period. This free calculator gives your EDD from either your last menstrual period (LMP) or your conception date.
Open the Pregnancy Due Date CalculatorHow to use the Pregnancy Due Date Calculator
- 1Choose whether you know your last period date or conception date.
- 2Enter the date.
- 3Read your estimated due date and current pregnancy week.
How it is calculated
From LMP, EDD is calculated using Naegele's rule (LMP + 280 days). From conception, EDD is conception date + 266 days. Only about 4% of babies arrive exactly on the EDD — it is an estimate.
Go beyond a single number
- Track your readings over time instead of one-off checks
- Get a 0–100 health score across 12 organs from your lab reports
- AI diet, exercise and Ayurvedic guidance for your whole family
FAQ
Pregnancy Due Date Calculator — FAQs
This calculator is for general information and education only and is not a substitute for professional medical advice, diagnosis, or treatment.