Due Date Calculator

Calculator

Due Date Calculator

When is your baby due?

To calculate your due date simply enter in the date of the first day of your last normal menstrual period.

Note: A typical pregnancy lasts, on average, 280 days, or 40 weeks - starting with the first day of your last normal menstrual period (LMP) as day 1.

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Formula Source: Greystone.Net, Inc.