Due Date Calculator

Calculate your expected due date based on your last menstrual period, IVF transfer date, or ultrasound measurement.

Real-time results 100% free No sign-up Mobile friendly

Formulas verified against authoritative sources including the CFPB and Federal Reserve. Last reviewed May 16, 2026. Editorial policy.

First Day of Last Period

Due Date

January 9, 2027

Days Remaining

238 days

Weeks Remaining

34 weeks

Progress: 15%Due: Jan 9

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