Comprehensive Due Date Calculator

Calculation Method
LMP Details
Conception Details
Ultrasound Details
IVF Details

Select a calculation method and enter details.

Important: This calculator provides estimates based on standard calculation methods (LMP = Last Menstrual Period). All dates, including trimester starts and term ranges, are approximate and for informational purposes only. They do not constitute medical or legal advice. Always consult your healthcare provider for accurate dating, personalized information, and prenatal care. Consult a qualified legal professional for any legal questions.

Privacy Policy: This calculator operates entirely within your web browser. No data you enter (dates, cycle length, etc.) is stored, tracked, or transmitted from your device. All calculations are performed client-side.