Pregnancy Due Date Calculator | Fast Browser Calculator

Use this free Pregnancy Due Date Calculator to calculate accurate results. Compare scenarios, plan confidently, and get reliable numbers instantly on desktop and mobile.

First Day of Last Period (LMP)

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Average Cycle Length (days)

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Estimated Pregnancy Timeline

Estimated Due Date

Current Pregnancy Week

Current Trimester

End of First Trimester

End of Second Trimester

Full-Term Starts

What Is a Pregnancy Due Date Calculator?

A due date calculator projects your estimated delivery date from the first day of your last period and maps key pregnancy milestones.

Why Is It Useful?

It helps you plan medical visits, tests, travel, and work schedules with a clear week-by-week timeline during pregnancy.