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Tools / Due date & maternity protection calculator (Germany)

Part of the topic: 👶 Family & children

Due date & maternity protection calculator

Enter the first day of your last period (or the due date from your doctor). The calculator shows the estimated due date, the week of pregnancy and when maternity protection starts and ends under German law.

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Estimated due date
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Due date by Naegele's rule (first day of the last period + 280 days, adjusted for cycle length) – only an estimate; your doctor or midwife determines the due date for the maternity certificate. Maternity protection under the German Maternity Protection Act (MuSchG): 6 weeks before and 8 weeks after birth (12 weeks for premature or multiple births or if the child has a disability); for early births the days not taken before birth are added afterwards. Parental leave must be requested in writing 7 weeks before it starts.

All money deadlines around the birth

Elterngeld, parental leave, Kindergeld – what to apply for and when.

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🔒 Runs entirely in your browser – nothing you enter is uploaded or stored.

How to use it

  1. Choose whether you know the first day of your last period or the due date.
  2. Enter the date (and your cycle length if it differs from 28 days).
  3. Read the due date, the week of pregnancy and the maternity protection and parental leave deadlines.
Your inputs live only in the link, not on our server.

Last checked: October 2026 · Based on: § 3 Maternity Protection Act (MuSchG). Found a mistake? Use the form below – we fix confirmed errors and update the date.

Frequently asked questions

How is the due date calculated?

Usually with Naegele's rule: first day of the last period plus 280 days (40 weeks), adjusted if your cycle is longer or shorter than 28 days. Only about 4% of babies are born exactly on the due date.

How long is maternity protection in Germany?

6 weeks before the due date and 8 weeks after birth – 12 weeks after premature or multiple births or if the child has a disability. During this time you receive maternity pay.

When do I have to request parental leave?

At the latest 7 weeks before it begins, in writing to your employer. If it should start straight after maternity protection, that is about one week after the birth.

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