DueDate

Pregnancy Due Date Calculator

From the first day of your last period — your estimated due date, current week, and trimester.

First day of your last period (LMP)

Estimated due date

—

Just an estimate

Due dates use Naegele's rule (LMP + 280 days). Only about 4% of babies arrive exactly on the due date — most arrive within two weeks either side.

Daily energy expenditure with personalised macro splits.

Body mass index with healthy-range guidance.

US Navy circumference method for body fat percentage.

Daily hydration target based on weight, activity, and climate.

Loading…