Due Date Calculator
Calculate the estimated due date for a pregnancy based on the first day of the last menstrual period (LMP) or the conception date. Also provides a timeline of key milestones.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
Previous Results
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Frequently Asked Questions
The due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (LMP), or 266 days (38 weeks) to the conception date. The calculation adjusts for cycle length differences from the standard 28-day cycle.
The calculator adjusts the due date by the difference between your average cycle length and 28 days. For example, if your cycle is 35 days, the due date is shifted 7 days later.
This calculator provides an estimate based on standard obstetric formulas. Actual due dates may vary. Always consult your healthcare provider for personalized medical advice.
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