Pregnancy Due Date Calculator
Enter the first day of your last period to estimate your due date (Naegele's rule) and current week of pregnancy.
Pourquoi utiliser cet outil ?
Estimating your due date from the early weeks of pregnancy helps you plan medical appointments and preparations ahead of time. This tool applies Naegele's rule based on the first day of your last period to estimate your due date and current week of pregnancy, for informational purposes and not a substitute for medical advice.
Why it's free
A discreet ad banner covers hosting costs — that's the whole business model. No account to create, no usage limit, no paid tier unlocking the real result. Calculations run in your browser, so your numbers, dates and text never leave your device.
How our tools work