Due Date Calculator
Calculate your estimated due date based on last menstrual period and cycle length.
How to Use the Due Date Calculator
1. Enter LMP Date
Select the first day of your last menstrual period.
2. Enter Cycle Length
Input your average menstrual cycle length in days (usually 28 days).
3. Click Calculate
Get your estimated due date and important pregnancy dates.
Important: This calculator uses Naegele's rule to estimate due dates. Actual delivery dates can vary by several weeks. Always consult with your healthcare provider for accurate pregnancy information and prenatal care.