Free Online Due Date Calculator
Estimate your Due Date with this free health & fitness tool.
Enter values and select Calculate to see your result.
Estimate only — this is not medical advice. Consult a qualified professional.
About this calculator
The Due Date Calculator is a free online health & fitness tool on Calcuto. Enter Last Menstrual Period, and it instantly works out your Due Date result and shows it below the form. You can change any value and recalculate right away to compare different scenarios. Results are an estimate for general information only — see the note below the calculator, not professional advice.
How to use it
To use the Due Date Calculator, enter Last Menstrual Period in the form above and select Calculate. Calcuto runs the Due Date calculation from your inputs and shows the result below the form. The output is an estimate, not professional advice.
Frequently asked questions
Is the Due Date Calculator free to use?
Yes. The Due Date Calculator is completely free, with no sign-up or download required.
What information do I need for the Due Date Calculator?
Provide Last Menstrual Period, then select Calculate to see your result.
Is my data saved when I use the Due Date Calculator?
No personal data is saved. Your inputs are used only to work out the result and are not stored; only your currency and theme preferences are kept in your own browser.
Does the Due Date Calculator work on mobile?
Yes. It works in any modern web browser on desktop, tablet, and mobile.
Is the Due Date Calculator result professional advice?
Estimate only — this is not medical advice. Consult a qualified professional.