Pregnancy Due Date Calculator
Estimate a pregnancy due date from the last menstrual period.
Informational tool only. For medical, pregnancy, financial or regulatory decisions, verify important results with a qualified professional.
Pregnancy Due Date Calculator
Free · No sign-up · Browser-basedHow does Pregnancy Due Date Calculator work?
Estimate a pregnancy due date from the last menstrual period. Enter the requested information and select Calculate to receive an instant result.
How to use
Complete the fields, click Calculate, review the result and use Reset to start over.
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Frequently Asked Questions
Is Pregnancy Due Date Calculator free?
Yes. It is designed to run in the browser without a paid API or account.
Does it work on mobile?
Yes. The layout is responsive for desktop, tablet and mobile.
Are results professional advice?
No. Some tools are informational estimates and should not replace professional advice.