Pregnancy, ovulation and due date calculator Pregnancy, ovulation and due date calculator

Due date and ovulation calculator

The tool gives calendar estimates for planning and personal tracking.

It is not medical advice; cycle variability and individual health factors can change dates.

Use the calculator to turn input values into a clear, repeatable result.
Keep units and assumptions visible so the calculation can be checked later.
Copy the result or key numbers for reports, messages or spreadsheets.
Reset to defaults when you want to compare another scenario from a clean state.
Calculators run in the browser and are useful for quick estimates before formal checks.
For finance, health, engineering or legal decisions, verify important results with a specialist or official source.