Free Online Due Date Calculator

Example Calculation:

• LMP: January 1, 2024
• Add One Year: January 1, 2025
• Subtract Three Months: October 1, 2024
• Add Seven Days: October 8, 2024

What does LMP and Cycle Length mean?

LMP: Provides a consistent reference point for the calculation.

Cycle Length: Accounts for variations in menstrual cycles, ensuring a more personalized due date.

Additional Factors for Accurate Due Date Calculations

While the Due Date Calculator offers a reliable estimate, several factors can influence its accuracy:

Ultrasound Measurements:

When: Early in the pregnancy.

Why: Measures the size of the embryo or fetus to provide a more precise due date.

Ovulation Date:

Definition: The day you release an egg from your ovary.

Relevance: Knowing your ovulation date can refine the due date calculation, especially if you have irregular cycles.

Prenatal Care:

Importance: Regular check-ups help monitor the baby’s growth and adjust the due date if necessary.

Tips for Using the Due Date Calculator Effectively

Provide Accurate Information:

Ensure you enter the correct first day of your last menstrual period and an accurate cycle length.

Update When Necessary:

If there are changes in your cycle length or other factors, recalculate your due date to stay updated.

Why Knowing Your Due Date is Important

Understanding your due date helps you plan prenatal care, prepare for the baby’s arrival, and schedule important medical appointments. It also allows you to manage your time effectively, ensuring you’re ready for one of life’s most wonderful events.