Due Date Calculator
Calculate your estimated pregnancy due date based on your last menstrual period. Enter First Day of Last Period and Average Cycle Length (days) to get Estimated Due Date,
Parameters
Enter the required details below
Ready to Calculate
Enter your parameters and click calculate to see the results here.
How to Use
- Enter First Day of Last Period.
- Enter Average Cycle Length (days).
- Click Calculate to see Estimated Due Date, Estimated Conception Date, Weeks Pregnant and Days Until Due Date.
- Check the result. Use Reset if you want to try different numbers.
About This Calculator
Calculate your estimated pregnancy due date based on your last menstrual period. This tool is in the Health & Fitness collection on Qalculators. Enter First Day of Last Period and Average Cycle Length (days) to calculate Estimated Due Date, Estimated Conception Date, Weeks Pregnant and Days Until Due Date. Results stay in your browser unless you copy them.
Frequently asked questions
What does Due Date Calculator calculate?+
Calculate your estimated pregnancy due date based on your last menstrual period. You enter First Day of Last Period and Average Cycle Length (days) and receive Estimated Due Date, Estimated Conception Date, Weeks Pregnant and Days Until Due Date.
What information do I need for Due Date Calculator?+
You need First Day of Last Period and Average Cycle Length (days). Optional fields can stay at their defaults.
Is Due Date Calculator free to use?+
Yes. Due Date Calculator is free and does not require an account. The calculation runs in your browser.
Related Calculators
Ovulation Calculator
Estimate your ovulation date and fertile window based on your menstrual cycle
Add Days to Date Calculator
Add or subtract days from a date
Age Calculator
Calculate your exact age in years, months, and days
Date Calculator
Calculate the difference between two dates in days, weeks, months, and years
Days Since Date Calculator
Calculate how many days have passed since a specific date
Days Until Date Calculator
Calculate the number of days until a specific date