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Pregnancy (OB) Calculator — Design By Shiv

Calculate EDD, gestational age, BMI and recommended weight gain, and approximate fetal weight.

Last Menstrual Period (LMP)

Reference Date (for GA) — default today

Height (cm)

Pre-pregnancy weight (kg)

Ultrasound date (optional)

US GA (weeks)

US GA (days)

AC (mm) — ultrasound (optional)

FL (mm) — ultrasound (optional)

Enter data above and click Calculate.

Note: This tool is for educational purposes only. It does not replace professional medical advice. For clinical decisions, consult your healthcare provider.