Due Date Calculator

Terms of Use

Last updated: October 23, 2026

1. What this site provides

Due Date Calculator provides free online calculators and educational articles about pregnancy dating and ovulation. By using the site you accept these terms.

2. Not medical advice

This calculator is for general information only and is not medical advice. Pregnancy dating can vary — always confirm your due date and any health decisions with your doctor, midwife or healthcare provider.

Estimated due dates and ovulation dates are statistical averages. Individual pregnancies vary, and dating decisions with clinical consequences (such as the timing of tests or induction) must be made with your healthcare provider, who has access to your full history and scan measurements.

3. Accuracy

We work to keep the calculators and content accurate and aligned with standard obstetric practice, but we do not guarantee that any result is correct for your individual circumstances, and we accept no liability for decisions made in reliance on the site's output.

4. Acceptable use

You may use the calculators freely for personal purposes. You may not scrape the site in a way that burdens its infrastructure, misrepresent the site's content as medical guidance, or remove attribution when quoting reasonable excerpts.

5. External links

The site links to third-party websites, including Amazon. We are not responsible for the content, prices, availability or privacy practices of third-party sites. Purchases made on third-party sites are governed by their terms.

6. Changes

We may update these terms from time to time; the current version will always be posted on this page with its date.