Baby Due Date Calculator

This tool estimates your pregnancy due date based on your cycle or medical details. Fast, private, and works entirely in your browser.

Estimate Based On:

Choose how you want to calculate your due date.

First Day of Your Last Period:

Pick the date depending on the selected method above.

Average Length of Your Cycles (days):

Typical range is between 26 and 32 days. Default is 28 days.