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Pregnancy Due Date Calculator

Calculate your estimated due date, conception date, and current gestational week/milestones.

Pregnancy Milestones

First Day of Last Period (LMP)

Due date is estimated using Naegele's Rule (LMP + 280 days / 40 weeks), assuming a typical 28-day cycle. Actual delivery dates vary.

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Estimated Due Date

Gestational Progress0 Weeks, 0 Days

Current TrimesterTrimester 1

Estimated Conception

Days Until Birth0 Days

This is an estimate for informational purposes only and is not medical advice. Consult a healthcare provider.

Mathematical Model FormulaDue Date = First Day of Last Menstrual Period (LMP) + 280 days (Naegele's Rule).

Determine your pregnancy due date, estimated conception date, and track gestational progress.

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