Professional, accurate, and easy-to-use gestational age & due date calculator trusted by obstetricians, midwives, and expectant parents worldwide.
Gestational Age: -
Estimated Due Date: -
Trimester: -
Days Pregnant: -
An Obstetric Wheel (also known as a pregnancy wheel or gestation calculator) is a standard medical tool used to calculate gestational age, estimated due date (EDD), and pregnancy trimester based on the first day of the last menstrual period (LMP).
Used in hospitals, clinics, and prenatal care worldwide, it provides quick and reliable results for prenatal tracking and care planning.
It follows standard medical formulas (280 days / 40 weeks) and is highly accurate for most pregnancies. Results may vary slightly based on cycle length.
Yes, simply adjust the cycle length to your average. For highly irregular cycles, consult a healthcare provider.
This tool matches professional obstetric calculations and is used for reference. Always confirm results with a licensed healthcare provider.
✅ Professional OB/GYN tool
✅ Accurate gestational age
✅ Estimated due date
✅ Trimester tracking
✅ Mobile-friendly design
👉 100% free to use
👉 Instant results
👉 Professional standards
👉 Prenatal care essential
👉 No registration required