Health
Pregnancy Due Date Calculator
Estimate the due date and current week.
Result
1/13/2027
Estimated due date
Current age
8w 4d
Trimester
#1
Download results
Quick summary
Estimate the due date and current pregnancy week from the first day of the last menstrual period.
How to calculate pregnancy due date manually
- Due date = LMP + 280 days (Naegele's rule).
- Current age = today − LMP.
Estimate the due date and current pregnancy week from the first day of the last menstrual period.
How it works
Due date = LMP + 280 days (Naegele's rule). Current age = today − LMP.
Example
LMP 60 days ago → 8w 4d, trimester 1, due ≈ 32 weeks from now.
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