Due Date Calculator
HealthEstimates the baby's expected delivery date based on the last menstrual period (LMP) or conception date.
How to use this calculator
Start with your values, or try a preset.
Enter Last Menstrual Period (LMP) Date and Conception Date (Optional) in the units shown.
Read Calculation Method Used, Due Date (LMP Method), and Due Date (Conception Method) in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
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